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13423072 = 251341787
BaseRepresentation
bin110011001101…
…000111100000
3221020221222211
4303031013200
511414014242
61155411504
7222044215
oct63150740
927227884
1013423072
117638a53
1245b3b94
132a1c960
141ad5b0c
1512a2317
hexccd1e0

13423072 has 48 divisors (see below), whose sum is σ = 29190672. Its totient is φ = 6036480.

The previous prime is 13423057. The next prime is 13423073. The reversal of 13423072 is 27032431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423073) 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 7 ways as a sum of consecutive naturals, for example, 16663 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (608139).

Almost surely, 213423072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13423072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14595336).

13423072 is an abundant number, since it is smaller than the sum of its proper divisors (15767600).

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

13423072 is a wasteful number, since it uses less digits than its factorization.

13423072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 13423072 is about 3663.7510832479. The cubic root of 13423072 is about 237.6570160229.

The spelling of 13423072 in words is "thirteen million, four hundred twenty-three thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 32 41 52 82 104 164 208 328 416 533 656 787 1066 1312 1574 2132 3148 4264 6296 8528 10231 12592 17056 20462 25184 32267 40924 64534 81848 129068 163696 258136 327392 419471 516272 838942 1032544 1677884 3355768 6711536 13423072