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51130101 = 3111791141
BaseRepresentation
bin1100001100001…
…0111011110101
310120012200022110
43003002323311
5101042130401
65023521233
71160412231
oct303027365
9116180273
1051130101
1126952890
1215159219
13a7928c9
146b0d5c1
15474e9d6
hex30c2ef5

51130101 has 16 divisors (see below), whose sum is σ = 78746688. Its totient is φ = 29164800.

The previous prime is 51130091. The next prime is 51130133. The reversal of 51130101 is 10103115.

It is not a de Polignac number, because 51130101 - 25 = 51130069 is a prime.

It is a super-2 number, since 2×511301012 = 5228574456540402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51130141) 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, 45010 + ... + 46131.

It is an arithmetic number, because the mean of its divisors is an integer number (4921668).

Almost surely, 251130101 is an apocalyptic number.

51130101 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51130101 is a deficient number, since it is larger than the sum of its proper divisors (27616587).

51130101 is a wasteful number, since it uses less digits than its factorization.

51130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91172.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 51130101 is about 7150.5315187054. The cubic root of 51130101 is about 371.1580493065.

Adding to 51130101 its reverse (10103115), we get a palindrome (61233216).

The spelling of 51130101 in words is "fifty-one million, one hundred thirty thousand, one hundred one".

Divisors: 1 3 11 17 33 51 187 561 91141 273423 1002551 1549397 3007653 4648191 17043367 51130101