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51082032 = 2431979709
BaseRepresentation
bin1100001011011…
…1001100110000
310120010020101010
43002313030300
5101034111112
65022510520
71160122131
oct302671460
9116106333
1051082032
112691a761
1215135440
13a776a71
146ad9c88
15474063c
hex30b7330

51082032 has 80 divisors (see below), whose sum is σ = 140864000. Its totient is φ = 15904512.

The previous prime is 51082019. The next prime is 51082033. The reversal of 51082032 is 23028015.

It is not an unprimeable number, because it can be changed into a prime (51082033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71694 + ... + 72402.

It is an arithmetic number, because the mean of its divisors is an integer number (1760800).

Almost surely, 251082032 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 51082032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70432000).

51082032 is an abundant number, since it is smaller than the sum of its proper divisors (89781968).

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

51082032 is a wasteful number, since it uses less digits than its factorization.

51082032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 51082032 is about 7147.1695096730. The cubic root of 51082032 is about 371.0417004248.

It can be divided in two parts, 5108 and 2032, that added together give a triangular number (7140 = T119).

The spelling of 51082032 in words is "fifty-one million, eighty-two thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 79 114 152 158 228 237 304 316 456 474 632 709 912 948 1264 1418 1501 1896 2127 2836 3002 3792 4254 4503 5672 6004 8508 9006 11344 12008 13471 17016 18012 24016 26942 34032 36024 40413 53884 56011 72048 80826 107768 112022 161652 168033 215536 224044 323304 336066 448088 646608 672132 896176 1064209 1344264 2128418 2688528 3192627 4256836 6385254 8513672 12770508 17027344 25541016 51082032