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91041492 = 22343533329
BaseRepresentation
bin1010110110100…
…10111011010100
320100022101110010
411123102323110
5141301311432
613011200220
72153561043
oct533227324
9210271403
1091041492
1147432903
12265a6070
1315b28009
14c13c55a
157ed53cc
hex56d2ed4

91041492 has 48 divisors (see below), whose sum is σ = 221538240. Its totient is φ = 29073408.

The previous prime is 91041481. The next prime is 91041493. The reversal of 91041492 is 29414019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91041493) 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, 25684 + ... + 29012.

It is an arithmetic number, because the mean of its divisors is an integer number (4615380).

Almost surely, 291041492 is an apocalyptic number.

It is an amenable number.

91041492 is an abundant number, since it is smaller than the sum of its proper divisors (130496748).

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

91041492 is a wasteful number, since it uses less digits than its factorization.

91041492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 91041492 is about 9541.5665380481. The cubic root of 91041492 is about 449.8624962597.

The spelling of 91041492 in words is "ninety-one million, forty-one thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 43 53 86 106 129 159 172 212 258 318 516 636 2279 3329 4558 6658 6837 9116 9987 13316 13674 19974 27348 39948 143147 176437 286294 352874 429441 529311 572588 705748 858882 1058622 1717764 2117244 7586791 15173582 22760373 30347164 45520746 91041492