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51093308 = 2271824761
BaseRepresentation
bin1100001011100…
…1111100111100
310120010210211202
43002321330330
5101034441213
65023035032
71160200040
oct302717474
9116123752
1051093308
1126928182
121513ba78
13a77bc36
146b00020
154743b58
hex30b9f3c

51093308 has 12 divisors (see below), whose sum is σ = 102186672. Its totient is φ = 21897120.

The previous prime is 51093283. The next prime is 51093319. The reversal of 51093308 is 80339015.

51093308 is an admirable number.

It is a super-2 number, since 2×510933082 = 5221052244765728, which contains 22 as substring.

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, 912353 + ... + 912408.

It is an arithmetic number, because the mean of its divisors is an integer number (8515556).

Almost surely, 251093308 is an apocalyptic number.

It is an amenable number.

51093308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51093308 is a wasteful number, since it uses less digits than its factorization.

51093308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824772 (or 1824770 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 51093308 is about 7147.9583098952. The cubic root of 51093308 is about 371.0690000331.

The spelling of 51093308 in words is "fifty-one million, ninety-three thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 1824761 3649522 7299044 12773327 25546654 51093308