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51474268 = 2219243829
BaseRepresentation
bin1100010001011…
…0111101011100
310120212011102101
43010112331130
5101134134033
65035134444
71163344516
oct304267534
9116764371
1051474268
112706841a
12152a4424
13a883461
146b9cbb6
1547bb97d
hex3116f5c

51474268 has 36 divisors (see below), whose sum is σ = 97398840. Its totient is φ = 23786784.

The previous prime is 51474263. The next prime is 51474277. The reversal of 51474268 is 86247415.

It is a super-2 number, since 2×514742682 = 5299200532271648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51474263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61678 + ... + 62506.

Almost surely, 251474268 is an apocalyptic number.

It is an amenable number.

51474268 is a deficient number, since it is larger than the sum of its proper divisors (45924572).

51474268 is a wasteful number, since it uses less digits than its factorization.

51474268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 893 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 51474268 is about 7174.5569898078. The cubic root of 51474268 is about 371.9889675689.

The spelling of 51474268 in words is "fifty-one million, four hundred seventy-four thousand, two hundred sixty-eight".

Divisors: 1 2 4 19 38 43 76 86 172 361 722 817 829 1444 1634 1658 3268 3316 15523 15751 31046 31502 35647 62092 63004 71294 142588 299269 598538 677293 1197076 1354586 2709172 12868567 25737134 51474268