Search a number
-
+
51130888 = 2331120551
BaseRepresentation
bin1100001100001…
…1001000001000
310120012201101121
43003003020020
5101042142023
65023525024
71160414434
oct303031010
9116181347
1051130888
1126953436
1215159774
13a793083
146b0d9c4
15474ed5d
hex30c3208

51130888 has 16 divisors (see below), whose sum is σ = 96183360. Its totient is φ = 25482000.

The previous prime is 51130867. The next prime is 51130889. The reversal of 51130888 is 88803115.

It is a super-2 number, since 2×511308882 = 5228735415337088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51130889) 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, 7788 + ... + 12763.

It is an arithmetic number, because the mean of its divisors is an integer number (6011460).

Almost surely, 251130888 is an apocalyptic number.

It is an amenable number.

51130888 is a deficient number, since it is larger than the sum of its proper divisors (45052472).

51130888 is a wasteful number, since it uses less digits than its factorization.

51130888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20868 (or 20864 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 51130888 is about 7150.5865493678. The cubic root of 51130888 is about 371.1599535982.

The spelling of 51130888 in words is "fifty-one million, one hundred thirty thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 311 622 1244 2488 20551 41102 82204 164408 6391361 12782722 25565444 51130888