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13391070 = 23571121731
BaseRepresentation
bin110011000101…
…010011011110
3221012100002120
4303011103132
511412003240
61155003410
7221552010
oct63052336
927170076
1013391070
117616a00
124599566
132a0b214
141ac81b0
151297ad0
hexcc54de

13391070 has 192 divisors, whose sum is σ = 44126208. Its totient is φ = 2534400.

The previous prime is 13391057. The next prime is 13391093. The reversal of 13391070 is 7019331.

It is a self number, because there is not a number n which added to its sum of digits gives 13391070.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 431955 + ... + 431985.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 213391070 is an apocalyptic number.

13391070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13391070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22063104).

13391070 is an abundant number, since it is smaller than the sum of its proper divisors (30735138).

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

13391070 is a wasteful number, since it uses less digits than its factorization.

13391070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13391070 is about 3659.3810952127. The cubic root of 13391070 is about 237.4679993819.

The spelling of 13391070 in words is "thirteen million, three hundred ninety-one thousand, seventy".