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156383140 = 2257819157
BaseRepresentation
bin10010101001000…
…11011110100100
3101220021002100011
421110203132210
5310013230030
623303500004
73606143344
oct1124433644
9356232304
10156383140
1180301a71
1244457604
1326525404
1416aaad24
15dae0b2a
hex95237a4

156383140 has 12 divisors (see below), whose sum is σ = 328404636. Its totient is φ = 62553248.

The previous prime is 156383137. The next prime is 156383173. The reversal of 156383140 is 41383651.

It can be written as a sum of positive squares in 2 ways, for example, as 58491904 + 97891236 = 7648^2 + 9894^2 .

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, 3909559 + ... + 3909598.

It is an arithmetic number, because the mean of its divisors is an integer number (27367053).

Almost surely, 2156383140 is an apocalyptic number.

156383140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156383140 is an abundant number, since it is smaller than the sum of its proper divisors (172021496).

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

156383140 is a wasteful number, since it uses less digits than its factorization.

156383140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819166 (or 7819164 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 156383140 is about 12505.3244660025. The cubic root of 156383140 is about 538.7616111752.

The spelling of 156383140 in words is "one hundred fifty-six million, three hundred eighty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7819157 15638314 31276628 39095785 78191570 156383140