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156105424 = 24174712211
BaseRepresentation
bin10010100110111…
…11101011010000
3101212201222101101
421103133223100
5304430333144
623253514144
73603605566
oct1123375320
9355658341
10156105424
1180132352
1244342954
1326458b97
1416a37a36
15da886d4
hex94dfad0

156105424 has 40 divisors (see below), whose sum is σ = 327086208. Its totient is φ = 71892480.

The previous prime is 156105413. The next prime is 156105427. The reversal of 156105424 is 424501651.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 156105392 and 156105401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156105427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6679 + ... + 18889.

Almost surely, 2156105424 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 156105424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163543104).

156105424 is an abundant number, since it is smaller than the sum of its proper divisors (170980784).

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

156105424 is a wasteful number, since it uses less digits than its factorization.

156105424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12283 (or 12277 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 156105424 is about 12494.2156216387. The cubic root of 156105424 is about 538.4424988181.

The spelling of 156105424 in words is "one hundred fifty-six million, one hundred five thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 17 34 47 68 94 136 188 272 376 752 799 1598 3196 6392 12211 12784 24422 48844 97688 195376 207587 415174 573917 830348 1147834 1660696 2295668 3321392 4591336 9182672 9756589 19513178 39026356 78052712 156105424