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51190716 = 2237160083
BaseRepresentation
bin1100001101000…
…1101110111100
310120022202110110
43003101232330
5101101100331
65025110020
71161054033
oct303215674
9116282413
1051190716
1126994385
1215188310
13a7b4385
146b2771a
154762946
hex30d1bbc

51190716 has 24 divisors (see below), whose sum is σ = 121129344. Its totient is φ = 16822960.

The previous prime is 51190679. The next prime is 51190729. The reversal of 51190716 is 61709115.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 29190 + ... + 30893.

It is an arithmetic number, because the mean of its divisors is an integer number (5047056).

Almost surely, 251190716 is an apocalyptic number.

It is an amenable number.

51190716 is an abundant number, since it is smaller than the sum of its proper divisors (69938628).

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

51190716 is a wasteful number, since it uses less digits than its factorization.

51190716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60161 (or 60159 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 51190716 is about 7154.7687593660. The cubic root of 51190716 is about 371.3046613163.

The spelling of 51190716 in words is "fifty-one million, one hundred ninety thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 60083 120166 180249 240332 360498 720996 4265893 8531786 12797679 17063572 25595358 51190716