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51237292 = 2271180413
BaseRepresentation
bin1100001101110…
…1000110101100
310120102010100111
43003131012230
5101104043132
65030105404
71161336601
oct303350654
9116363314
1051237292
1126a16377
12151ab264
13a7cc632
146b3a6a8
154771647
hex30dd1ac

51237292 has 12 divisors (see below), whose sum is σ = 90928656. Its totient is φ = 25257680.

The previous prime is 51237289. The next prime is 51237293. The reversal of 51237292 is 29273215.

51237292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51237293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89923 + ... + 90490.

It is an arithmetic number, because the mean of its divisors is an integer number (7577388).

Almost surely, 251237292 is an apocalyptic number.

It is an amenable number.

51237292 is a deficient number, since it is larger than the sum of its proper divisors (39691364).

51237292 is a wasteful number, since it uses less digits than its factorization.

51237292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180488 (or 180486 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 51237292 is about 7158.0229113911. The cubic root of 51237292 is about 371.4172380030.

It can be divided in two parts, 51237 and 292, that added together give a square (51529 = 2272).

The spelling of 51237292 in words is "fifty-one million, two hundred thirty-seven thousand, two hundred ninety-two".

Divisors: 1 2 4 71 142 284 180413 360826 721652 12809323 25618646 51237292