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20852695 = 510738977
BaseRepresentation
bin100111110001…
…0111111010111
31110020102112001
41033202333113
520314241240
62022540131
7342150013
oct117427727
943212461
1020852695
1110852a36
126b97647
134421596
142aab543
151c6d89a
hex13e2fd7

20852695 has 8 divisors (see below), whose sum is σ = 25257744. Its totient is φ = 16525824.

The previous prime is 20852687. The next prime is 20852701. The reversal of 20852695 is 59625802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20852695 - 23 = 20852687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18954 + ... + 20023.

It is an arithmetic number, because the mean of its divisors is an integer number (3157218).

Almost surely, 220852695 is an apocalyptic number.

20852695 is a deficient number, since it is larger than the sum of its proper divisors (4405049).

20852695 is a wasteful number, since it uses less digits than its factorization.

20852695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39089.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 20852695 is about 4566.4751176372. The cubic root of 20852695 is about 275.2458187680.

The spelling of 20852695 in words is "twenty million, eight hundred fifty-two thousand, six hundred ninety-five".

Divisors: 1 5 107 535 38977 194885 4170539 20852695