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51105542141 = 3371511100363
BaseRepresentation
bin101111100110001000…
…001010111111111101
311212220122002112100002
4233212020022333331
51314131004322031
635251053044045
73456304640453
oct574610127775
9155818075302
1051105542141
111a745823245
129aa3186625
134a85b11184
14268b4b29d3
1514e1972ccb
hexbe620affd

51105542141 has 8 divisors (see below), whose sum is σ = 51291624384. Its totient is φ = 50919664320.

The previous prime is 51105542107. The next prime is 51105542143. The reversal of 51105542141 is 14124550115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51105542141 - 26 = 51105542077 is a prime.

It is a super-2 number, since 2×511055421412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105542143) 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, 459026 + ... + 559388.

It is an arithmetic number, because the mean of its divisors is an integer number (6411453048).

Almost surely, 251105542141 is an apocalyptic number.

It is an amenable number.

51105542141 is a deficient number, since it is larger than the sum of its proper divisors (186082243).

51105542141 is a wasteful number, since it uses less digits than its factorization.

51105542141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102211.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 51105542141 in words is "fifty-one billion, one hundred five million, five hundred forty-two thousand, one hundred forty-one".

Divisors: 1 337 1511 100363 509207 33822331 151648493 51105542141