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51729130110 = 2357246329191
BaseRepresentation
bin110000001011010010…
…111110001001111110
311221112002111002012210
4300023102332021332
51321420124130420
635433010441250
73510616231260
oct601322761176
9157462432183
1051729130110
111aa358220a9
12a037b93226
134b55078338
14270a239b30
15152b59e9e0
hexc0b4be27e

51729130110 has 32 divisors (see below), whose sum is σ = 141885614592. Its totient is φ = 11823801120.

The previous prime is 51729130091. The next prime is 51729130121. The reversal of 51729130110 is 1103192715.

It is a super-2 number, since 2×517291301102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 123164386 + ... + 123164805.

It is an arithmetic number, because the mean of its divisors is an integer number (4433925456).

Almost surely, 251729130110 is an apocalyptic number.

51729130110 is an abundant number, since it is smaller than the sum of its proper divisors (90156484482).

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

51729130110 is a wasteful number, since it uses less digits than its factorization.

51729130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246329208.

The product of its (nonzero) digits is 1890, while the sum is 30.

The spelling of 51729130110 in words is "fifty-one billion, seven hundred twenty-nine million, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 246329191 492658382 738987573 1231645955 1477975146 1724304337 2463291910 3448608674 3694937865 5172913011 7389875730 8621521685 10345826022 17243043370 25864565055 51729130110