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51314880 = 263553453
BaseRepresentation
bin1100001111000…
…0000011000000
310120120001210010
43003300003000
5101114034010
65031504520
71162112031
oct303600300
9116501703
1051314880
1126a696a1
1215228140
13a828a46
146b5aa88
154789620
hex30f00c0

51314880 has 56 divisors (see below), whose sum is σ = 162927792. Its totient is φ = 13683712.

The previous prime is 51314807. The next prime is 51314881. The reversal of 51314880 is 8841315.

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 Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51314881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25767 + ... + 27686.

Almost surely, 251314880 is an apocalyptic number.

It is an amenable number.

51314880 is an abundant number, since it is smaller than the sum of its proper divisors (111612912).

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

51314880 is a wasteful number, since it uses less digits than its factorization.

51314880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53473 (or 53463 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 51314880 is about 7163.4405141664. The cubic root of 51314880 is about 371.6046209667.

It can be divided in two parts, 5131 and 4880, that added together give a triangular number (10011 = T141).

The spelling of 51314880 in words is "fifty-one million, three hundred fourteen thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 53453 106906 160359 213812 267265 320718 427624 534530 641436 801795 855248 1069060 1282872 1603590 1710496 2138120 2565744 3207180 3420992 4276240 5131488 6414360 8552480 10262976 12828720 17104960 25657440 51314880