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9969305990 = 257142418657
BaseRepresentation
bin10010100100011011…
…11000100110000110
3221201210000012212012
421102031320212012
5130404120242430
64325124454222
7502022463020
oct112215704606
927653005765
109969305990
114256460166
121b2284a372
13c2b531637
146a8053010
153d5348695
hex252378986

9969305990 has 16 divisors (see below), whose sum is σ = 20508286752. Its totient is φ = 3418047744.

The previous prime is 9969305987. The next prime is 9969306029. The reversal of 9969305990 is 995039699.

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, 71209259 + ... + 71209398.

It is an arithmetic number, because the mean of its divisors is an integer number (1281767922).

Almost surely, 29969305990 is an apocalyptic number.

9969305990 is an abundant number, since it is smaller than the sum of its proper divisors (10538980762).

9969305990 is a wasteful number, since it uses less digits than its factorization.

9969305990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142418671.

The product of its (nonzero) digits is 5314410, while the sum is 59.

The square root of 9969305990 is about 99846.4120036369. The cubic root of 9969305990 is about 2152.2281562466.

The spelling of 9969305990 in words is "nine billion, nine hundred sixty-nine million, three hundred five thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 142418657 284837314 712093285 996930599 1424186570 1993861198 4984652995 9969305990