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51494283 = 3216734261
BaseRepresentation
bin1100010001101…
…1110110001011
310120220011212200
43010123312023
5101140304113
65035411243
71163460051
oct304336613
9116804780
1051494283
1127081465
12152b3b23
13a88c5b9
146ba61d1
1547c2873
hex311bd8b

51494283 has 12 divisors (see below), whose sum is σ = 74828208. Its totient is φ = 34122960.

The previous prime is 51494239. The next prime is 51494291. The reversal of 51494283 is 38249415.

It is not a de Polignac number, because 51494283 - 210 = 51493259 is a prime.

It is a super-2 number, since 2×514942832 = 5303322363368178, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51494983) 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, 15628 + ... + 18633.

It is an arithmetic number, because the mean of its divisors is an integer number (6235684).

Almost surely, 251494283 is an apocalyptic number.

51494283 is a deficient number, since it is larger than the sum of its proper divisors (23333925).

51494283 is a wasteful number, since it uses less digits than its factorization.

51494283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34434 (or 34431 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51494283 is about 7175.9517138844. The cubic root of 51494283 is about 372.0371754384.

The spelling of 51494283 in words is "fifty-one million, four hundred ninety-four thousand, two hundred eighty-three".

Divisors: 1 3 9 167 501 1503 34261 102783 308349 5721587 17164761 51494283