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36318820 = 2251815941
BaseRepresentation
bin1000101010001…
…0111001100100
32112100012001111
42022202321210
533244200240
63334234404
7620463526
oct212427144
975305044
1036318820
111955695a
12101b5a04
1376a8135
144b75a16
1532c61ea
hex22a2e64

36318820 has 12 divisors (see below), whose sum is σ = 76269564. Its totient is φ = 14527520.

The previous prime is 36318811. The next prime is 36318839. The reversal of 36318820 is 2881363.

It can be written as a sum of positive squares in 2 ways, for example, as 27604516 + 8714304 = 5254^2 + 2952^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907951 + ... + 907990.

It is an arithmetic number, because the mean of its divisors is an integer number (6355797).

Almost surely, 236318820 is an apocalyptic number.

It is an amenable number.

36318820 is an abundant number, since it is smaller than the sum of its proper divisors (39950744).

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

36318820 is a wasteful number, since it uses less digits than its factorization.

36318820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815950 (or 1815948 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 36318820 is about 6026.5097693441. The cubic root of 36318820 is about 331.1646026450.

The spelling of 36318820 in words is "thirty-six million, three hundred eighteen thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1815941 3631882 7263764 9079705 18159410 36318820