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74680865284 = 22107212772
BaseRepresentation
bin100010110001101010…
…0111001001000000100
321010202122020000220111
41011203110321020010
52210421300142114
654150302042404
75252442611134
oct1054324711004
9233678200814
1074680865284
1129743446483
1212582579404
137072138b1c
143886562ac4
151e21528bc4
hex1163539204

74680865284 has 27 divisors (see below), whose sum is σ = 132027734293. Its totient is φ = 36962489168.

The previous prime is 74680865267. The next prime is 74680865291. The reversal of 74680865284 is 48256808647.

The square root of 74680865284 is 273278.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49057820100 + 25623045184 = 221490^2 + 160072^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 58480854 + ... + 58482130.

Almost surely, 274680865284 is an apocalyptic number.

74680865284 is the 273278-th square number.

It is an amenable number.

74680865284 is a deficient number, since it is larger than the sum of its proper divisors (57346869009).

74680865284 is an equidigital number, since it uses as much as digits as its factorization.

74680865284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 58.

The spelling of 74680865284 in words is "seventy-four billion, six hundred eighty million, eight hundred sixty-five thousand, two hundred eighty-four".

Divisors: 1 2 4 107 214 428 1277 2554 5108 11449 22898 45796 136639 273278 546556 1630729 3261458 6522916 14620373 29240746 58481492 174488003 348976006 697952012 18670216321 37340432642 74680865284