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51013053 = 32713199313
BaseRepresentation
bin1100001010011…
…0010110111101
310112222201202100
43002212112331
5101024404203
65021215313
71156414050
oct302462675
9115881670
1051013053
1126882953
1215101539
13a751550
146abca97
154729ea3
hex30a65bd

51013053 has 48 divisors (see below), whose sum is σ = 91436800. Its totient is φ = 26687232.

The previous prime is 51013051. The next prime is 51013069. The reversal of 51013053 is 35031015.

It is a happy number.

It is not a de Polignac number, because 51013053 - 21 = 51013051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51013051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162825 + ... + 163137.

Almost surely, 251013053 is an apocalyptic number.

It is an amenable number.

51013053 is a deficient number, since it is larger than the sum of its proper divisors (40423747).

51013053 is a wasteful number, since it uses less digits than its factorization.

51013053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51013053 is about 7142.3422628715. The cubic root of 51013053 is about 370.8746122238.

Adding to 51013053 its reverse (35031015), we get a palindrome (86044068).

The spelling of 51013053 in words is "fifty-one million, thirteen thousand, fifty-three".

Divisors: 1 3 7 9 13 21 39 63 91 117 199 273 313 597 819 939 1393 1791 2191 2587 2817 4069 4179 6573 7761 12207 12537 18109 19719 23283 28483 36621 54327 62287 85449 162981 186861 256347 436009 560583 809731 1308027 2429193 3924081 5668117 7287579 17004351 51013053