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74570272 = 257332903
BaseRepresentation
bin1000111000111…
…01101000100000
312012022120011221
410130131220200
5123042222042
611222144424
71563560020
oct434355040
9165276157
1074570272
1139102827
1220b82114
13125abb2a
149c91a80
15682ed67
hex471da20

74570272 has 24 divisors (see below), whose sum is σ = 167783616. Its totient is φ = 31958592.

The previous prime is 74570239. The next prime is 74570323. The reversal of 74570272 is 27207547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166228 + ... + 166675.

It is an arithmetic number, because the mean of its divisors is an integer number (6990984).

Almost surely, 274570272 is an apocalyptic number.

It is an amenable number.

74570272 is an abundant number, since it is smaller than the sum of its proper divisors (93213344).

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

74570272 is a wasteful number, since it uses less digits than its factorization.

74570272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332920 (or 332912 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 74570272 is about 8635.4080389985. The cubic root of 74570272 is about 420.9093524687.

It can be divided in two parts, 745 and 70272, that added together give a palindrome (71017).

The spelling of 74570272 in words is "seventy-four million, five hundred seventy thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 332903 665806 1331612 2330321 2663224 4660642 5326448 9321284 10652896 18642568 37285136 74570272