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51675312 = 2431382813
BaseRepresentation
bin1100010100100…
…0000010110000
310121020101012110
43011020002300
5101212102222
65043325320
71165142613
oct305100260
9117211173
1051675312
1127195477
1215380840
13a923b10
146c1217a
15480b30c
hex31480b0

51675312 has 40 divisors (see below), whose sum is σ = 143765104. Its totient is φ = 15899904.

The previous prime is 51675301. The next prime is 51675341. The reversal of 51675312 is 21357615.

It is a self number, because there is not a number n which added to its sum of digits gives 51675312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40783 + ... + 42030.

Almost surely, 251675312 is an apocalyptic number.

51675312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51675312 is an abundant number, since it is smaller than the sum of its proper divisors (92089792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51675312 is a wasteful number, since it uses less digits than its factorization.

51675312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82837 (or 82831 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 51675312 is about 7188.5542357278. The cubic root of 51675312 is about 372.4726331560.

The spelling of 51675312 in words is "fifty-one million, six hundred seventy-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 82813 165626 248439 331252 496878 662504 993756 1076569 1325008 1987512 2153138 3229707 3975024 4306276 6459414 8612552 12918828 17225104 25837656 51675312