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51145107 = 3139191427
BaseRepresentation
bin1100001100011…
…0100110010011
310120020102220020
43003012212103
5101043120412
65024114523
71160504046
oct303064623
9116212806
1051145107
1126963092
1215165a43
13a7996a0
146b14c5d
15475418c
hex30c6993

51145107 has 16 divisors (see below), whose sum is σ = 73570560. Its totient is φ = 31417632.

The previous prime is 51145079. The next prime is 51145109. The reversal of 51145107 is 70154115.

It is not a de Polignac number, because 51145107 - 28 = 51144851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51145109) 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, 35128 + ... + 36554.

It is an arithmetic number, because the mean of its divisors is an integer number (4598160).

Almost surely, 251145107 is an apocalyptic number.

51145107 is a deficient number, since it is larger than the sum of its proper divisors (22425453).

51145107 is a wasteful number, since it uses less digits than its factorization.

51145107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 51145107 is about 7151.5807343552. The cubic root of 51145107 is about 371.1943557274.

The spelling of 51145107 in words is "fifty-one million, one hundred forty-five thousand, one hundred seven".

Divisors: 1 3 13 39 919 1427 2757 4281 11947 18551 35841 55653 1311413 3934239 17048369 51145107