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51124151 = 1317231331
BaseRepresentation
bin1100001100000…
…1011110110111
310120012101011002
43003001132313
5101041433101
65023433515
71160356001
oct303013667
9116171132
1051124151
1126949371
121515589b
13a78cca0
146b0b371
15474cd6b
hex30c17b7

51124151 has 8 divisors (see below), whose sum is σ = 58295664. Its totient is φ = 44415360.

The previous prime is 51124127. The next prime is 51124159. The reversal of 51124151 is 15142115.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51124151 is a prime.

It is a super-2 number, since 2×511241512 = 5227357630941602, which 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 (51124159) 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, 115445 + ... + 115886.

It is an arithmetic number, because the mean of its divisors is an integer number (7286958).

Almost surely, 251124151 is an apocalyptic number.

51124151 is a deficient number, since it is larger than the sum of its proper divisors (7171513).

51124151 is a wasteful number, since it uses less digits than its factorization.

51124151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231361.

The product of its digits is 200, while the sum is 20.

The square root of 51124151 is about 7150.1154536133. The cubic root of 51124151 is about 371.1436515511.

Adding to 51124151 its reverse (15142115), we get a palindrome (66266266).

The spelling of 51124151 in words is "fifty-one million, one hundred twenty-four thousand, one hundred fifty-one".

Divisors: 1 13 17 221 231331 3007303 3932627 51124151