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12290946746 = 2131971350429
BaseRepresentation
bin10110111001001100…
…01111011010111010
31011201120120210020212
423130212033122322
5200132440243441
65351341351122
7613403215661
oct133446173272
934646523225
1012290946746
115237a12231
1224702684a2
13120b512970
14848515dd8
154be091eeb
hex2dc98f6ba

12290946746 has 32 divisors (see below), whose sum is σ = 21194006400. Its totient is φ = 5298471360.

The previous prime is 12290946697. The next prime is 12290946761. The reversal of 12290946746 is 64764909221.

It is a junction number, because it is equal to n+sod(n) for n = 12290946694 and 12290946703.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140141 + ... + 210288.

It is an arithmetic number, because the mean of its divisors is an integer number (662312700).

Almost surely, 212290946746 is an apocalyptic number.

12290946746 is a deficient number, since it is larger than the sum of its proper divisors (8903059654).

12290946746 is a wasteful number, since it uses less digits than its factorization.

12290946746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350534.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 12290946746 in words is "twelve billion, two hundred ninety million, nine hundred forty-six thousand, seven hundred forty-six".

Divisors: 1 2 13 19 26 38 71 142 247 494 923 1349 1846 2698 17537 35074 350429 700858 4555577 6658151 9111154 13316302 24880459 49760918 86555963 173111926 323445967 472728721 646891934 945457442 6145473373 12290946746