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156052138 = 2117093279
BaseRepresentation
bin10010100110100…
…10101010101010
3101212122021021211
421103102222222
5304422132023
623252423334
73603264334
oct1123225252
9355567254
10156052138
11800a6310
1244317b4a
132643a858
1416a22454
15da77a0d
hex94d2aaa

156052138 has 8 divisors (see below), whose sum is σ = 255358080. Its totient is φ = 70932780.

The previous prime is 156052123. The next prime is 156052147. The reversal of 156052138 is 831250651.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3546618 + ... + 3546661.

It is an arithmetic number, because the mean of its divisors is an integer number (31919760).

Almost surely, 2156052138 is an apocalyptic number.

156052138 is a deficient number, since it is larger than the sum of its proper divisors (99305942).

156052138 is a wasteful number, since it uses less digits than its factorization.

156052138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093292.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 156052138 is about 12492.0830128526. The cubic root of 156052138 is about 538.3812267379.

The spelling of 156052138 in words is "one hundred fifty-six million, fifty-two thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 7093279 14186558 78026069 156052138