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52800090 = 2357251429
BaseRepresentation
bin1100100101101…
…0101001011010
310200100112002220
43021122221122
5102004100330
65123404510
71210536060
oct311325132
9120315086
1052800090
1127893542
1215823736
13ac28a75
147026030
15497e710
hex325aa5a

52800090 has 32 divisors (see below), whose sum is σ = 144823680. Its totient is φ = 12068544.

The previous prime is 52800089. The next prime is 52800133. The reversal of 52800090 is 9000825.

52800090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52800090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125505 + ... + 125924.

It is an arithmetic number, because the mean of its divisors is an integer number (4525740).

Almost surely, 252800090 is an apocalyptic number.

52800090 is an abundant number, since it is smaller than the sum of its proper divisors (92023590).

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

52800090 is a wasteful number, since it uses less digits than its factorization.

52800090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251446.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 52800090 is about 7266.3670427525. The cubic root of 52800090 is about 375.1557042298.

The spelling of 52800090 in words is "fifty-two million, eight hundred thousand, ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 251429 502858 754287 1257145 1508574 1760003 2514290 3520006 3771435 5280009 7542870 8800015 10560018 17600030 26400045 52800090