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11971076590 = 25114311812143
BaseRepresentation
bin10110010011000100…
…00010000111101110
31010220021200200220001
423021202002013232
5144004043422330
65255513414514
7602440320634
oct131142020756
933807620801
1011971076590
1150933a7030
1223a110a43a
13118a178895
14817c4d354
154a0e5a9ca
hex2c98821ee

11971076590 has 64 divisors (see below), whose sum is σ = 24085112832. Its totient is φ = 4246300800.

The previous prime is 11971076581. The next prime is 11971076627. The reversal of 11971076590 is 9567017911.

It is a self number, because there is not a number n which added to its sum of digits gives 11971076590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5585059 + ... + 5587201.

It is an arithmetic number, because the mean of its divisors is an integer number (376329888).

Almost surely, 211971076590 is an apocalyptic number.

11971076590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11971076590 is an abundant number, since it is smaller than the sum of its proper divisors (12114036242).

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

11971076590 is a wasteful number, since it uses less digits than its factorization.

11971076590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its (nonzero) digits is 119070, while the sum is 46.

The spelling of 11971076590 in words is "eleven billion, nine hundred seventy-one million, seventy-six thousand, five hundred ninety".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 1181 2143 2362 2365 4286 4730 5905 10715 11810 12991 21430 23573 25982 47146 50783 64955 92149 101566 117865 129910 184298 235730 253915 460745 507830 558613 921490 1013639 1117226 2027278 2530883 2793065 5061766 5068195 5586130 10136390 12654415 25308830 27839713 55679426 108827969 139198565 217655938 278397130 544139845 1088279690 1197107659 2394215318 5985538295 11971076590