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91233000468 = 22324359758129
BaseRepresentation
bin101010011110111101…
…0010001110000010100
322201111011222121210100
41110331322101300110
52443321122003333
6105524543454100
76406560465051
oct1247572216024
9281434877710
1091233000468
1135767717645
12158218b7330
1387ac3cc35c
1445b697c028
15258e735213
hex153de91c14

91233000468 has 36 divisors (see below), whose sum is σ = 230626008340. Its totient is φ = 30409779456.

The previous prime is 91233000437. The next prime is 91233000487. The reversal of 91233000468 is 86400033219.

It can be written as a sum of positive squares in 2 ways, for example, as 40926099204 + 50306901264 = 202302^2 + 224292^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540428 + ... + 1598556.

Almost surely, 291233000468 is an apocalyptic number.

It is an amenable number.

91233000468 is an abundant number, since it is smaller than the sum of its proper divisors (139393007872).

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

91233000468 is a wasteful number, since it uses less digits than its factorization.

91233000468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101736 (or 101731 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 91233000468 in words is "ninety-one billion, two hundred thirty-three million, four hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 12 18 36 43597 58129 87194 116258 130791 174387 174388 232516 261582 348774 392373 523161 523164 697548 784746 1046322 1569492 2092644 2534250013 5068500026 7602750039 10137000052 15205500078 22808250117 30411000156 45616500234 91233000468