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86772940 = 2254338647
BaseRepresentation
bin1010010110000…
…00110011001100
320001021112002121
411023000303030
5134203213230
612335502324
72102362222
oct513006314
9201245077
1086772940
1144a87881
12250879a4
1314c92147
14b74ab12
15794077a
hex52c0ccc

86772940 has 12 divisors (see below), whose sum is σ = 182223216. Its totient is φ = 34709168.

The previous prime is 86772929. The next prime is 86772941. The reversal of 86772940 is 4927768.

It is not an unprimeable number, because it can be changed into a prime (86772941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169304 + ... + 2169343.

It is an arithmetic number, because the mean of its divisors is an integer number (15185268).

Almost surely, 286772940 is an apocalyptic number.

It is an amenable number.

86772940 is an abundant number, since it is smaller than the sum of its proper divisors (95450276).

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

86772940 is a wasteful number, since it uses less digits than its factorization.

86772940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338656 (or 4338654 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 86772940 is about 9315.1994074201. The cubic root of 86772940 is about 442.7189421599.

The spelling of 86772940 in words is "eighty-six million, seven hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 4338647 8677294 17354588 21693235 43386470 86772940