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52515008 = 2671371127
BaseRepresentation
bin1100100001010…
…1000011000000
310122211001001022
43020111003000
5101420440013
65113325012
71205240660
oct310250300
9118731038
1052515008
1127709337
1215706768
13ab59090
146d901a0
154925008
hex32150c0

52515008 has 112 divisors (see below), whose sum is σ = 131088384. Its totient is φ = 20321280.

The previous prime is 52515007. The next prime is 52515011. The reversal of 52515008 is 80051525.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (52515007) 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, 413441 + ... + 413567.

It is an arithmetic number, because the mean of its divisors is an integer number (1170432).

Almost surely, 252515008 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 52515008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65544192).

52515008 is an abundant number, since it is smaller than the sum of its proper divisors (78573376).

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

52515008 is a wasteful number, since it uses less digits than its factorization.

52515008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 52515008 is about 7246.7239494823. The cubic root of 52515008 is about 374.4792962780.

The spelling of 52515008 in words is "fifty-two million, five hundred fifteen thousand, eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 71 91 104 112 127 142 182 208 224 254 284 364 416 448 497 508 568 728 832 889 923 994 1016 1136 1456 1651 1778 1846 1988 2032 2272 2912 3302 3556 3692 3976 4064 4544 5824 6461 6604 7112 7384 7952 8128 9017 11557 12922 13208 14224 14768 15904 18034 23114 25844 26416 28448 29536 31808 36068 46228 51688 52832 56896 59072 63119 72136 92456 103376 105664 117221 126238 144272 184912 206752 234442 252476 288544 369824 413504 468884 504952 577088 739648 820547 937768 1009904 1641094 1875536 2019808 3282188 3751072 4039616 6564376 7502144 13128752 26257504 52515008