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13450121300 = 22527117922111
BaseRepresentation
bin11001000011011000…
…01001000001010100
31021201100202221210202
430201230021001110
5210021212340200
610102350440032
7654210100430
oct144154110124
937640687722
1013450121300
115782274230
122734503018
131364711975
149184599c0
1553ac161d5
hex321b09054

13450121300 has 144 divisors (see below), whose sum is σ = 36850974720. Its totient is φ = 4138992000.

The previous prime is 13450121291. The next prime is 13450121303. The reversal of 13450121300 is 312105431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13450121303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597245 + ... + 619355.

Almost surely, 213450121300 is an apocalyptic number.

13450121300 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 13450121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18425487360).

13450121300 is an abundant number, since it is smaller than the sum of its proper divisors (23400853420).

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

13450121300 is a wasteful number, since it uses less digits than its factorization.

13450121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222 (or 22215 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 13450121300 its reverse (312105431), we get a palindrome (13762226731).

The spelling of 13450121300 in words is "thirteen billion, four hundred fifty million, one hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 7 10 11 14 20 22 25 28 35 44 50 55 70 77 79 100 110 140 154 158 175 220 275 308 316 350 385 395 550 553 700 770 790 869 1100 1106 1540 1580 1738 1925 1975 2212 2765 3476 3850 3950 4345 5530 6083 7700 7900 8690 11060 12166 13825 17380 21725 22111 24332 27650 30415 43450 44222 55300 60830 86900 88444 110555 121660 152075 154777 221110 243221 304150 309554 442220 486442 552775 608300 619108 773885 972884 1105550 1216105 1547770 1702547 1746769 2211100 2432210 3095540 3405094 3493538 3869425 4864420 6080525 6810188 6987076 7738850 8512735 8733845 12161050 12227383 15477700 17025470 17467690 19214459 24322100 24454766 34050940 34935380 38428918 42563675 43669225 48909532 61136915 76857836 85127350 87338450 96072295 122273830 134501213 170254700 174676900 192144590 244547660 269002426 305684575 384289180 480361475 538004852 611369150 672506065 960722950 1222738300 1345012130 1921445900 2690024260 3362530325 6725060650 13450121300