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51055050111 = 3131443790677
BaseRepresentation
bin101111100011000111…
…100011110101111111
311212210010002021021220
4233203013203311333
51314030043100421
635242050524423
73455122523412
oct574307436577
9155703067256
1051055050111
111a71a27689a
129a8a296713
134a78512b30
1426848cbb79
1514dc2ec3c6
hexbe31e3d7f

51055050111 has 16 divisors (see below), whose sum is σ = 73315701984. Its totient is φ = 31415969664.

The previous prime is 51055050089. The next prime is 51055050113. The reversal of 51055050111 is 11105055015.

It is not a de Polignac number, because 51055050111 - 214 = 51055033727 is a prime.

It is a super-2 number, since 2×510550501112 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055050113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517705 + ... + 608381.

It is an arithmetic number, because the mean of its divisors is an integer number (4582231374).

Almost surely, 251055050111 is an apocalyptic number.

51055050111 is a deficient number, since it is larger than the sum of its proper divisors (22260651873).

51055050111 is a wasteful number, since it uses less digits than its factorization.

51055050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105130.

The product of its (nonzero) digits is 625, while the sum is 24.

The spelling of 51055050111 in words is "fifty-one billion, fifty-five million, fifty thousand, one hundred eleven".

Divisors: 1 3 13 39 14437 43311 90677 187681 272031 563043 1178801 3536403 1309103849 3927311547 17018350037 51055050111