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70235872 = 257313553
BaseRepresentation
bin1000010111110…
…11011011100000
311220011100111121
410023323123200
5120440021442
610545222024
71511665210
oct413733340
9156140447
1070235872
1136712283
121b631914
1311721cb5
149484240
156275967
hex42fb6e0

70235872 has 24 divisors (see below), whose sum is σ = 158031216. Its totient is φ = 30100992.

The previous prime is 70235861. The next prime is 70235881. The reversal of 70235872 is 27853207.

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, 156553 + ... + 157000.

It is an arithmetic number, because the mean of its divisors is an integer number (6584634).

Almost surely, 270235872 is an apocalyptic number.

It is an amenable number.

70235872 is an abundant number, since it is smaller than the sum of its proper divisors (87795344).

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

70235872 is a wasteful number, since it uses less digits than its factorization.

70235872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313570 (or 313562 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 70235872 is about 8380.6844589210. The cubic root of 70235872 is about 412.5909137845.

The spelling of 70235872 in words is "seventy million, two hundred thirty-five thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 313553 627106 1254212 2194871 2508424 4389742 5016848 8779484 10033696 17558968 35117936 70235872