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74465304656157 = 3212919640446067
BaseRepresentation
bin10000111011100111001110…
…000010000011100100011101
3100202122210222010010002201100
4100323213032002003210131
534230014420442444112
6422212515543103313
721453640444663542
oct2073471602034435
9322583863102640
1074465304656157
11217aa6161988a8
128427a5ba41b39
13327208189773c
1414561d6144bc9
158920306822dc
hex43b9ce08391d

74465304656157 has 12 divisors (see below), whose sum is σ = 107569321581280. Its totient is φ = 49639693683528.

The previous prime is 74465304656123. The next prime is 74465304656167. The reversal of 74465304656157 is 75165640356447.

74465304656157 is a `hidden beast` number, since 7 + 4 + 4 + 6 + 5 + 3 + 0 + 4 + 6 + 5 + 615 + 7 = 666.

It is not a de Polignac number, because 74465304656157 - 28 = 74465304655901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74465304656094 and 74465304656103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74465304656167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320106763 + ... + 320339304.

Almost surely, 274465304656157 is an apocalyptic number.

It is an amenable number.

74465304656157 is a deficient number, since it is larger than the sum of its proper divisors (33104016925123).

74465304656157 is a wasteful number, since it uses less digits than its factorization.

74465304656157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640458992 (or 640458989 counting only the distinct ones).

The product of its (nonzero) digits is 254016000, while the sum is 63.

The spelling of 74465304656157 in words is "seventy-four trillion, four hundred sixty-five billion, three hundred four million, six hundred fifty-six thousand, one hundred fifty-seven".

Divisors: 1 3 9 12919 38757 116271 640446067 1921338201 5764014603 8273922739573 24821768218719 74465304656157