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72891483 = 375379829
BaseRepresentation
bin1000101100000…
…11110001011011
312002011021022120
410112003301123
5122130011413
611122152323
71543365420
oct426036133
9162137276
1072891483
11381664a5
12204b26a3
1312141972
149975d47
1565ec723
hex4583c5b

72891483 has 32 divisors (see below), whose sum is σ = 114739200. Its totient is φ = 40300416.

The previous prime is 72891473. The next prime is 72891499. The reversal of 72891483 is 38419827.

It is not a de Polignac number, because 72891483 - 25 = 72891451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72891433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87513 + ... + 88341.

It is an arithmetic number, because the mean of its divisors is an integer number (3585600).

Almost surely, 272891483 is an apocalyptic number.

72891483 is a deficient number, since it is larger than the sum of its proper divisors (41847717).

72891483 is a wasteful number, since it uses less digits than its factorization.

72891483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

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

The square root of 72891483 is about 8537.6509064262. The cubic root of 72891483 is about 417.7267259092.

The spelling of 72891483 in words is "seventy-two million, eight hundred ninety-one thousand, four hundred eighty-three".

Divisors: 1 3 7 21 53 79 159 237 371 553 829 1113 1659 2487 4187 5803 12561 17409 29309 43937 65491 87927 131811 196473 307559 458437 922677 1375311 3471023 10413069 24297161 72891483