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72892068 = 22389131521
BaseRepresentation
bin1000101100000…
…11111010100100
312002011022010020
410112003322210
5122130021233
611122155140
71543400214
oct426037244
9162138106
1072892068
1138166987
12204b2ab0
1312142002
149976244
1565ec9b3
hex4583ea4

72892068 has 48 divisors (see below), whose sum is σ = 173638080. Its totient is φ = 23795200.

The previous prime is 72892063. The next prime is 72892087. The reversal of 72892068 is 86029827.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72892063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139648 + ... + 140168.

It is an arithmetic number, because the mean of its divisors is an integer number (3617460).

Almost surely, 272892068 is an apocalyptic number.

It is an amenable number.

72892068 is an abundant number, since it is smaller than the sum of its proper divisors (100746012).

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

72892068 is a wasteful number, since it uses less digits than its factorization.

72892068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 72892068 is about 8537.6851663668. The cubic root of 72892068 is about 417.7278434128.

The spelling of 72892068 in words is "seventy-two million, eight hundred ninety-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 89 131 178 262 267 356 393 521 524 534 786 1042 1068 1563 1572 2084 3126 6252 11659 23318 34977 46369 46636 68251 69954 92738 136502 139107 139908 185476 204753 273004 278214 409506 556428 819012 6074339 12148678 18223017 24297356 36446034 72892068