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156400284 = 22313033357
BaseRepresentation
bin10010101001001…
…11101010011100
3101220021221212010
421110213222130
5310014302114
623304111220
73606244335
oct1124475234
9356257763
10156400284
1180313937
1244465510
1326530161
1416ab328c
15dae5c59
hex9527a9c

156400284 has 12 divisors (see below), whose sum is σ = 364934024. Its totient is φ = 52133424.

The previous prime is 156400273. The next prime is 156400313. The reversal of 156400284 is 482004651.

156400284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1564002842 = 48922097670561312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6516667 + ... + 6516690.

Almost surely, 2156400284 is an apocalyptic number.

It is an amenable number.

156400284 is an abundant number, since it is smaller than the sum of its proper divisors (208533740).

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

156400284 is a wasteful number, since it uses less digits than its factorization.

156400284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033364 (or 13033362 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 156400284 is about 12506.0099152368. The cubic root of 156400284 is about 538.7812982752.

The spelling of 156400284 in words is "one hundred fifty-six million, four hundred thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 13033357 26066714 39100071 52133428 78200142 156400284