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91096764 = 22311690127
BaseRepresentation
bin1010110111000…
…00011010111100
320100102012021020
411123200122330
5141310044024
613012304140
72154211143
oct533403274
9210365236
1091096764
1147470390
1226612050
1315b47215
14c15475a
157ee6979
hex56e06bc

91096764 has 24 divisors (see below), whose sum is σ = 231883008. Its totient is φ = 27605040.

The previous prime is 91096741. The next prime is 91096799. The reversal of 91096764 is 46769019.

It is a super-2 number, since 2×910967642 = 16597240822543392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344932 + ... + 345195.

It is an arithmetic number, because the mean of its divisors is an integer number (9661792).

Almost surely, 291096764 is an apocalyptic number.

It is an amenable number.

91096764 is an abundant number, since it is smaller than the sum of its proper divisors (140786244).

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

91096764 is a wasteful number, since it uses less digits than its factorization.

91096764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690145 (or 690143 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 91096764 is about 9544.4624783169. The cubic root of 91096764 is about 449.9535161862.

The spelling of 91096764 in words is "ninety-one million, ninety-six thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 690127 1380254 2070381 2760508 4140762 7591397 8281524 15182794 22774191 30365588 45548382 91096764