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75474168 = 23371140841
BaseRepresentation
bin1000111111110…
…10010011111000
312021000111002120
410133322103320
5123310133133
611253401240
71604343210
oct437722370
9167014076
1075474168
113966a950
1221339220
1312837393
14a049240
15695cab3
hex47fa4f8

75474168 has 64 divisors (see below), whose sum is σ = 235249920. Its totient is φ = 19603200.

The previous prime is 75474131. The next prime is 75474187. The reversal of 75474168 is 86147457.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18573 + ... + 22268.

It is an arithmetic number, because the mean of its divisors is an integer number (3675780).

Almost surely, 275474168 is an apocalyptic number.

It is an amenable number.

75474168 is an abundant number, since it is smaller than the sum of its proper divisors (159775752).

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

75474168 is a wasteful number, since it uses less digits than its factorization.

75474168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40868 (or 40864 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 75474168 is about 8687.5870067586. The cubic root of 75474168 is about 422.6031969012.

Subtracting 75474168 from its reverse (86147457), we obtain a square (10673289 = 32672).

The spelling of 75474168 in words is "seventy-five million, four hundred seventy-four thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 132 154 168 231 264 308 462 616 924 1848 40841 81682 122523 163364 245046 285887 326728 449251 490092 571774 857661 898502 980184 1143548 1347753 1715322 1797004 2287096 2695506 3144757 3430644 3594008 5391012 6289514 6861288 9434271 10782024 12579028 18868542 25158056 37737084 75474168