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13397020 = 22571317433
BaseRepresentation
bin110011000110…
…110000011100
3221012122020221
4303012300130
511412201040
61155051124
7221605240
oct63066034
927178227
1013397020
11762041a
1245a0aa4
132a10b40
141aca420
15129974a
hexcc6c1c

13397020 has 96 divisors (see below), whose sum is σ = 36747648. Its totient is φ = 3981312.

The previous prime is 13397011. The next prime is 13397029. The reversal of 13397020 is 2079331.

It is an interprime number because it is at equal distance from previous prime (13397011) and next prime (13397029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30724 + ... + 31156.

It is an arithmetic number, because the mean of its divisors is an integer number (382788).

Almost surely, 213397020 is an apocalyptic number.

13397020 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 13397020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18373824).

13397020 is an abundant number, since it is smaller than the sum of its proper divisors (23350628).

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

13397020 is a wasteful number, since it uses less digits than its factorization.

13397020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13397020 is about 3660.1939839304. The cubic root of 13397020 is about 237.5031652394.

The spelling of 13397020 in words is "thirteen million, three hundred ninety-seven thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 17 20 26 28 34 35 52 65 68 70 85 91 119 130 140 170 182 221 238 260 340 364 433 442 455 476 595 866 884 910 1105 1190 1547 1732 1820 2165 2210 2380 3031 3094 4330 4420 5629 6062 6188 7361 7735 8660 11258 12124 14722 15155 15470 22516 28145 29444 30310 30940 36805 39403 51527 56290 60620 73610 78806 95693 103054 112580 147220 157612 191386 197015 206108 257635 382772 394030 478465 515270 669851 788060 956930 1030540 1339702 1913860 2679404 3349255 6698510 13397020