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51514131 = 3171010081
BaseRepresentation
bin1100010010000…
…0101100010011
310120221012002210
43010200230103
5101141423011
65040043203
71163601654
oct304405423
9116835083
1051514131
1127095369
1215303503
13a898646
146bad52b
1547c86a6
hex3120b13

51514131 has 8 divisors (see below), whose sum is σ = 72725904. Its totient is φ = 32322560.

The previous prime is 51514123. The next prime is 51514147. The reversal of 51514131 is 13141515.

It is a happy number.

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 51514131 - 23 = 51514123 is a prime.

It is a super-2 number, since 2×515141312 = 5307411385370322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51514098 and 51514107.

It is not an unprimeable number, because it can be changed into a prime (51514171) 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, 504990 + ... + 505091.

It is an arithmetic number, because the mean of its divisors is an integer number (9090738).

Almost surely, 251514131 is an apocalyptic number.

51514131 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51514131 is a deficient number, since it is larger than the sum of its proper divisors (21211773).

51514131 is a wasteful number, since it uses less digits than its factorization.

51514131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010101.

The product of its digits is 300, while the sum is 21.

The square root of 51514131 is about 7177.3345330979. The cubic root of 51514131 is about 372.0849687397.

Adding to 51514131 its reverse (13141515), we get a palindrome (64655646).

The spelling of 51514131 in words is "fifty-one million, five hundred fourteen thousand, one hundred thirty-one".

Divisors: 1 3 17 51 1010081 3030243 17171377 51514131