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51064763 = 400112763
BaseRepresentation
bin1100001011001…
…0111110111011
310120002100200112
43002302332323
5101033033023
65022254535
71160020601
oct302627673
9116070615
1051064763
1126908792
121512744b
13a76bc49
146ad3871
15473a478
hex30b2fbb

51064763 has 4 divisors (see below), whose sum is σ = 51081528. Its totient is φ = 51048000.

The previous prime is 51064757. The next prime is 51064789. The reversal of 51064763 is 36746015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51064763 - 216 = 50999227 is a prime.

It is a super-2 number, since 2×510647632 = 5215220040492338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51064703) 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, 2381 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (12770382).

Almost surely, 251064763 is an apocalyptic number.

51064763 is a deficient number, since it is larger than the sum of its proper divisors (16765).

51064763 is a wasteful number, since it uses less digits than its factorization.

51064763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16764.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 51064763 is about 7145.9613069202. The cubic root of 51064763 is about 370.9998837555. Note that the first 3 decimals are identical.

The spelling of 51064763 in words is "fifty-one million, sixty-four thousand, seven hundred sixty-three".

Divisors: 1 4001 12763 51064763