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13306351440 = 243537240499
BaseRepresentation
bin11000110010001111…
…01100111101010000
31021100100020200122010
430121013230331100
5204222411221230
610040213142520
7650513056344
oct143107547520
937310220563
1013306351440
1157090a7868
1226b432aa40
1313409b4745
14903313624
1552d2b79b0
hex3191ecf50

13306351440 has 120 divisors (see below), whose sum is σ = 42395724000. Its totient is φ = 3452373504.

The previous prime is 13306351439. The next prime is 13306351441. The reversal of 13306351440 is 4415360331.

13306351440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13306351439) and next prime (13306351441).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13306351398 and 13306351407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13306351441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308311 + ... + 348809.

It is an arithmetic number, because the mean of its divisors is an integer number (353297700).

Almost surely, 213306351440 is an apocalyptic number.

13306351440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13306351440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21197862000).

13306351440 is an abundant number, since it is smaller than the sum of its proper divisors (29089372560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13306351440 is a wasteful number, since it uses less digits than its factorization.

13306351440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40589 (or 40546 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 13306351440 in words is "thirteen billion, three hundred six million, three hundred fifty-one thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 37 40 48 60 74 80 111 120 148 185 222 240 296 370 444 555 592 740 888 1110 1369 1480 1776 2220 2738 2960 4107 4440 5476 6845 8214 8880 10952 13690 16428 20535 21904 27380 32856 40499 41070 54760 65712 80998 82140 109520 121497 161996 164280 202495 242994 323992 328560 404990 485988 607485 647984 809980 971976 1214970 1498463 1619960 1943952 2429940 2996926 3239920 4495389 4859880 5993852 7492315 8990778 9719760 11987704 14984630 17981556 22476945 23975408 29969260 35963112 44953890 55443131 59938520 71926224 89907780 110886262 119877040 166329393 179815560 221772524 277215655 332658786 359631120 443545048 554431310 665317572 831646965 887090096 1108862620 1330635144 1663293930 2217725240 2661270288 3326587860 4435450480 6653175720 13306351440