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51145348 = 2231914007
BaseRepresentation
bin1100001100011…
…0101010000100
310120020110020011
43003012222010
5101043122343
65024120004
71160504542
oct303065204
9116213204
1051145348
1126963291
1215166004
13a799827
146b14d92
15475429d
hex30c6a84

51145348 has 12 divisors (see below), whose sum is σ = 89554752. Its totient is φ = 25558280.

The previous prime is 51145343. The next prime is 51145349. The reversal of 51145348 is 84354115.

It is a super-2 number, since 2×511453482 = 5231693244082208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51145343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10761 + ... + 14767.

It is an arithmetic number, because the mean of its divisors is an integer number (7462896).

Almost surely, 251145348 is an apocalyptic number.

It is an amenable number.

51145348 is a deficient number, since it is larger than the sum of its proper divisors (38409404).

51145348 is a wasteful number, since it uses less digits than its factorization.

51145348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7202 (or 7200 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 51145348 is about 7151.5975837571. The cubic root of 51145348 is about 371.1949387594.

The spelling of 51145348 in words is "fifty-one million, one hundred forty-five thousand, three hundred forty-eight".

Divisors: 1 2 4 3191 4007 6382 8014 12764 16028 12786337 25572674 51145348