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12290311684 = 2272811562063
BaseRepresentation
bin10110111001000111…
…10100011000000100
31011201112101112010001
423130203310120010
5200132304433214
65351320011044
7613364632330
oct133443643004
934645345101
1012290311684
115237619092
122470000a84
13120b34c8a1
148483cc7c0
154bdeb8c74
hex2dc8f4604

12290311684 has 24 divisors (see below), whose sum is σ = 24668114688. Its totient is φ = 5248528320.

The previous prime is 12290311673. The next prime is 12290311711. The reversal of 12290311684 is 48611309221.

It is a super-2 number, since 2×122903116842 (a number of 21 digits) contains 22 as substring.

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, 773164 + ... + 788899.

It is an arithmetic number, because the mean of its divisors is an integer number (1027838112).

Almost surely, 212290311684 is an apocalyptic number.

12290311684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12290311684 is an abundant number, since it is smaller than the sum of its proper divisors (12377803004).

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

12290311684 is a wasteful number, since it uses less digits than its factorization.

12290311684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562355 (or 1562353 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 12290311684 in words is "twelve billion, two hundred ninety million, three hundred eleven thousand, six hundred eighty-four".

Divisors: 1 2 4 7 14 28 281 562 1124 1967 3934 7868 1562063 3124126 6248252 10934441 21868882 43737764 438939703 877879406 1755758812 3072577921 6145155842 12290311684