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91054668 = 22317214409
BaseRepresentation
bin1010110110101…
…10001001001100
320100100001112010
411123112021030
5141302222133
613011341220
72153644335
oct533261114
9210301463
1091054668
11474417a1
12265b1810
1315b31003
14c14328c
157ed9263
hex56d624c

91054668 has 24 divisors (see below), whose sum is σ = 212632560. Its totient is φ = 30327040.

The previous prime is 91054633. The next prime is 91054673. The reversal of 91054668 is 86645019.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18448 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (8859690).

Almost surely, 291054668 is an apocalyptic number.

It is an amenable number.

91054668 is an abundant number, since it is smaller than the sum of its proper divisors (121577892).

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

91054668 is a wasteful number, since it uses less digits than its factorization.

91054668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6137 (or 6135 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 91054668 is about 9542.2569657288. The cubic root of 91054668 is about 449.8841973625.

The spelling of 91054668 in words is "ninety-one million, fifty-four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1721 3442 4409 5163 6884 8818 10326 13227 17636 20652 26454 52908 7587889 15175778 22763667 30351556 45527334 91054668