Search a number
-
+
51914632 = 23711711187
BaseRepresentation
bin1100011000001…
…0011110001000
310121200112111011
43012002132020
5101242232012
65052413304
71200160420
oct306023610
9117615434
1051914632
1127339260
1215477234
13a9a8a23
146c75480
1548571a7
hex3182788

51914632 has 64 divisors (see below), whose sum is σ = 123171840. Its totient is φ = 19924800.

The previous prime is 51914587. The next prime is 51914641. The reversal of 51914632 is 23641915.

It is a junction number, because it is equal to n+sod(n) for n = 51914594 and 51914603.

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, 43143 + ... + 44329.

It is an arithmetic number, because the mean of its divisors is an integer number (1924560).

Almost surely, 251914632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51914632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61585920).

51914632 is an abundant number, since it is smaller than the sum of its proper divisors (71257208).

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

51914632 is a wasteful number, since it uses less digits than its factorization.

51914632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1278 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 51914632 is about 7205.1809137592. The cubic root of 51914632 is about 373.0467493102.

It can be divided in two parts, 519 and 14632, that added together give a palindrome (15151).

The spelling of 51914632 in words is "fifty-one million, nine hundred fourteen thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 71 77 88 142 154 284 308 497 568 616 781 994 1187 1562 1988 2374 3124 3976 4748 5467 6248 8309 9496 10934 13057 16618 21868 26114 33236 43736 52228 66472 84277 91399 104456 168554 182798 337108 365596 589939 674216 731192 927047 1179878 1854094 2359756 3708188 4719512 6489329 7416376 12978658 25957316 51914632