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12423135658 = 253508723039
BaseRepresentation
bin10111001000111101…
…00000000110101010
31012001210022200100111
423210132200012222
5200420310320113
65412422524534
7616566624253
oct134436400652
935053280314
1012423135658
1152a559976a
1224a859674a
13122ca1685b
1485bcc5b2a
154ca9a413d
hex2e47a01aa

12423135658 has 16 divisors (see below), whose sum is σ = 18990858240. Its totient is φ = 6092905936.

The previous prime is 12423135653. The next prime is 12423135671. The reversal of 12423135658 is 85653132421.

It is a self number, because there is not a number n which added to its sum of digits gives 12423135658.

It is not an unprimeable number, because it can be changed into a prime (12423135653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527703 + ... + 550741.

It is an arithmetic number, because the mean of its divisors is an integer number (1186928640).

Almost surely, 212423135658 is an apocalyptic number.

12423135658 is a deficient number, since it is larger than the sum of its proper divisors (6567722582).

12423135658 is a wasteful number, since it uses less digits than its factorization.

12423135658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28181.

The product of its digits is 172800, while the sum is 40.

The spelling of 12423135658 in words is "twelve billion, four hundred twenty-three million, one hundred thirty-five thousand, six hundred fifty-eight".

Divisors: 1 2 53 106 5087 10174 23039 46078 269611 539222 1221067 2442134 117199393 234398786 6211567829 12423135658