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51363345 = 3511311293
BaseRepresentation
bin1100001111101…
…1111000010001
310120122112021010
43003323320101
5101122111340
65032521133
71162403235
oct303737021
9116575233
1051363345
1126aa2050
12152501a9
13a844b17
146b705c5
154798b80
hex30fbe11

51363345 has 16 divisors (see below), whose sum is σ = 89652672. Its totient is φ = 24903360.

The previous prime is 51363337. The next prime is 51363391. The reversal of 51363345 is 54336315.

It is a happy number.

It is not a de Polignac number, because 51363345 - 23 = 51363337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155482 + ... + 155811.

It is an arithmetic number, because the mean of its divisors is an integer number (5603292).

Almost surely, 251363345 is an apocalyptic number.

51363345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51363345 is a deficient number, since it is larger than the sum of its proper divisors (38289327).

51363345 is a wasteful number, since it uses less digits than its factorization.

51363345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311312.

The product of its digits is 16200, while the sum is 30.

The square root of 51363345 is about 7166.8225176852. The cubic root of 51363345 is about 371.7215730805.

The spelling of 51363345 in words is "fifty-one million, three hundred sixty-three thousand, three hundred forty-five".

Divisors: 1 3 5 11 15 33 55 165 311293 933879 1556465 3424223 4669395 10272669 17121115 51363345