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12637395506 = 271198744789
BaseRepresentation
bin10111100010011111…
…10101101000110010
31012121201111012121102
423301033311220302
5201340133124011
65445555124402
7625111042451
oct136117655062
935551435542
1012637395506
1153a553131a
1225482a3702
131265224628
1487c53ab98
154de6c873b
hex2f13f5a32

12637395506 has 16 divisors (see below), whose sum is σ = 19233184320. Its totient is φ = 6226427760.

The previous prime is 12637395499. The next prime is 12637395521. The reversal of 12637395506 is 60559373621.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259760 + ... + 304548.

It is an arithmetic number, because the mean of its divisors is an integer number (1202074020).

Almost surely, 212637395506 is an apocalyptic number.

12637395506 is a deficient number, since it is larger than the sum of its proper divisors (6595788814).

12637395506 is a wasteful number, since it uses less digits than its factorization.

12637395506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46849.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 12637395506 in words is "twelve billion, six hundred thirty-seven million, three hundred ninety-five thousand, five hundred six".

Divisors: 1 2 71 142 1987 3974 44789 89578 141077 282154 3180019 6360038 88995743 177991486 6318697753 12637395506