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20130859 = 75979617
BaseRepresentation
bin100110011001…
…0110000101011
31101212202100101
41030302300223
520123141414
61555250231
7333052360
oct114626053
941782311
1020130859
11103aa681
1268a9977
13422ab68
142960467
151b79a74
hex1332c2b

20130859 has 16 divisors (see below), whose sum is σ = 23731200. Its totient is φ = 16720704.

The previous prime is 20130841. The next prime is 20130881. The reversal of 20130859 is 95803102.

It is not a de Polignac number, because 20130859 - 219 = 19606571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130829) 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, 32319 + ... + 32935.

It is an arithmetic number, because the mean of its divisors is an integer number (1483200).

Almost surely, 220130859 is an apocalyptic number.

20130859 is a deficient number, since it is larger than the sum of its proper divisors (3600341).

20130859 is an equidigital number, since it uses as much as digits as its factorization.

20130859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20130859 is about 4486.7425823196. The cubic root of 20130859 is about 272.0324851268.

The spelling of 20130859 in words is "twenty million, one hundred thirty thousand, eight hundred fifty-nine".

Divisors: 1 7 59 79 413 553 617 4319 4661 32627 36403 48743 254821 341201 2875837 20130859