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52806830 = 2522872309
BaseRepresentation
bin1100100101110…
…0010010101110
310200100212100112
43021130102232
5102004304310
65123500022
71210564526
oct311342256
9120325315
1052806830
112789860a
1215827612
13ac2bb5b
147028686
154981705
hex325c4ae

52806830 has 16 divisors (see below), whose sum is σ = 95135040. Its totient is φ = 21104352.

The previous prime is 52806797. The next prime is 52806851. The reversal of 52806830 is 3860825.

52806830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×528068302 = 5577122589297800, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21716 + ... + 24024.

It is an arithmetic number, because the mean of its divisors is an integer number (5945940).

Almost surely, 252806830 is an apocalyptic number.

52806830 is a deficient number, since it is larger than the sum of its proper divisors (42328210).

52806830 is a wasteful number, since it uses less digits than its factorization.

52806830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 52806830 is about 7266.8308085437. The cubic root of 52806830 is about 375.1716665881.

The spelling of 52806830 in words is "fifty-two million, eight hundred six thousand, eight hundred thirty".

Divisors: 1 2 5 10 2287 2309 4574 4618 11435 11545 22870 23090 5280683 10561366 26403415 52806830