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74052144 = 243457139
BaseRepresentation
bin1000110100111…
…11001000110000
312011100020110000
410122133020300
5122424132034
611203110000
71556301315
oct432371060
9164306400
1074052144
1138889521
1220972300
131245a04a
149b98d0c
15677b599
hex469f230

74052144 has 50 divisors (see below), whose sum is σ = 214332140. Its totient is φ = 24683616.

The previous prime is 74052137. The next prime is 74052193. The reversal of 74052144 is 44125047.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27274 + ... + 29865.

Almost surely, 274052144 is an apocalyptic number.

It is an amenable number.

74052144 is an abundant number, since it is smaller than the sum of its proper divisors (140279996).

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

74052144 is a wasteful number, since it uses less digits than its factorization.

74052144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57159 (or 57144 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 74052144 is about 8605.3555417542. The cubic root of 74052144 is about 419.9322339647.

The spelling of 74052144 in words is "seventy-four million, fifty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 57139 114278 171417 228556 342834 457112 514251 685668 914224 1028502 1371336 1542753 2057004 2742672 3085506 4114008 4628259 6171012 8228016 9256518 12342024 18513036 24684048 37026072 74052144