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51101107 = 371381111
BaseRepresentation
bin1100001011101…
…1110110110011
310120011012112121
43002323312303
5101040213412
65023135111
71160231551
oct302736663
9116135477
1051101107
1126933022
1215144497
13a782655
146b02bd1
154746107
hex30bbdb3

51101107 has 4 divisors (see below), whose sum is σ = 52482256. Its totient is φ = 49719960.

The previous prime is 51101087. The next prime is 51101131. The reversal of 51101107 is 70110115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51101107 - 27 = 51100979 is a prime.

It is a super-2 number, since 2×511011072 = 5222646273250898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51101207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690519 + ... + 690592.

It is an arithmetic number, because the mean of its divisors is an integer number (13120564).

Almost surely, 251101107 is an apocalyptic number.

51101107 is a deficient number, since it is larger than the sum of its proper divisors (1381149).

51101107 is a wasteful number, since it uses less digits than its factorization.

51101107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381148.

The product of its (nonzero) digits is 35, while the sum is 16.

The square root of 51101107 is about 7148.5038294737. The cubic root of 51101107 is about 371.0878793476.

The spelling of 51101107 in words is "fifty-one million, one hundred one thousand, one hundred seven".

Divisors: 1 37 1381111 51101107