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99312668990 = 2523647667379
BaseRepresentation
bin101110001111101111…
…1110001000100111110
3100111100021022022100122
41130133133301010332
53111343020401430
6113342411054542
710114026521003
oct1343737610476
9314307268318
1099312668990
113913345a147
12172b7741452
1394992b79c2
144b41a638aa
1528b3c1aee5
hex171f7f113e

99312668990 has 32 divisors (see below), whose sum is σ = 186823687680. Its totient is φ = 37939104544.

The previous prime is 99312668981. The next prime is 99312669011. The reversal of 99312668990 is 9986621399.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184880 + ... + 482499.

It is an arithmetic number, because the mean of its divisors is an integer number (5838240240).

Almost surely, 299312668990 is an apocalyptic number.

99312668990 is a deficient number, since it is larger than the sum of its proper divisors (87511018690).

99312668990 is a wasteful number, since it uses less digits than its factorization.

99312668990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668056.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 99312668990 in words is "ninety-nine billion, three hundred twelve million, six hundred sixty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 647 1294 3235 6470 14881 29762 74405 148810 667379 1334758 3336895 6673790 15349717 30699434 76748585 153497170 431794213 863588426 2158971065 4317942130 9931266899 19862533798 49656334495 99312668990