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13000645254 = 2311319174993
BaseRepresentation
bin11000001101110011…
…00001101010000110
31020120001000012120210
430012321201222012
5203111131122004
65550012540250
7640111442562
oct140671415206
936501005523
1013000645254
115571586223
122629a81686
1312c25695cc
148b48966a2
1551152d089
hex306e61a86

13000645254 has 16 divisors (see below), whose sum is σ = 26231391792. Its totient is φ = 4295198208.

The previous prime is 13000645249. The next prime is 13000645261. The reversal of 13000645254 is 45254600031.

It is a congruent number.

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, 9586819 + ... + 9588174.

It is an arithmetic number, because the mean of its divisors is an integer number (1639461987).

Almost surely, 213000645254 is an apocalyptic number.

13000645254 is an abundant number, since it is smaller than the sum of its proper divisors (13230746538).

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

13000645254 is a wasteful number, since it uses less digits than its factorization.

13000645254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19175111.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 13000645254 in words is "thirteen billion, six hundred forty-five thousand, two hundred fifty-four".

Divisors: 1 2 3 6 113 226 339 678 19174993 38349986 57524979 115049958 2166774209 4333548418 6500322627 13000645254