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51352628 = 2217374209
BaseRepresentation
bin1100001111100…
…1010000110100
310120121222120012
43003321100310
5101121241003
65032355352
71162330055
oct303712064
9116558505
1051352628
1126a94a98
1215245b58
13a83cc92
146b6a72c
1547958d8
hex30f9434

51352628 has 12 divisors (see below), whose sum is σ = 90387780. Its totient is φ = 25527552.

The previous prime is 51352571. The next prime is 51352643. The reversal of 51352628 is 82625315.

It can be written as a sum of positive squares in 2 ways, for example, as 49168144 + 2184484 = 7012^2 + 1478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51352594 and 51352603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36413 + ... + 37796.

It is an arithmetic number, because the mean of its divisors is an integer number (7532315).

Almost surely, 251352628 is an apocalyptic number.

It is an amenable number.

51352628 is a deficient number, since it is larger than the sum of its proper divisors (39035152).

51352628 is a wasteful number, since it uses less digits than its factorization.

51352628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74386 (or 74384 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 51352628 is about 7166.0747972652. The cubic root of 51352628 is about 371.6957179550.

The spelling of 51352628 in words is "fifty-one million, three hundred fifty-two thousand, six hundred twenty-eight".

Divisors: 1 2 4 173 346 692 74209 148418 296836 12838157 25676314 51352628