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74633972 = 2272665499
BaseRepresentation
bin1000111001011…
…01001011110100
312012102210120012
410130231023310
5123101241342
611223355352
71564243520
oct434551364
9165383505
1074633972
1139146676
1220bb2b58
1312601b1a
149caad80
156843b82
hex472d2f4

74633972 has 12 divisors (see below), whose sum is σ = 149268000. Its totient is φ = 31985976.

The previous prime is 74633969. The next prime is 74633987. The reversal of 74633972 is 27933647.

74633972 is an admirable number.

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, 1332722 + ... + 1332777.

It is an arithmetic number, because the mean of its divisors is an integer number (12439000).

Almost surely, 274633972 is an apocalyptic number.

It is an amenable number.

74633972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74633972 is a wasteful number, since it uses less digits than its factorization.

74633972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665510 (or 2665508 counting only the distinct ones).

The product of its digits is 190512, while the sum is 41.

The square root of 74633972 is about 8639.0955545126. The cubic root of 74633972 is about 421.0291691828.

The spelling of 74633972 in words is "seventy-four million, six hundred thirty-three thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 2665499 5330998 10661996 18658493 37316986 74633972