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15036000020 = 225751800001
BaseRepresentation
bin11100000000011011…
…10010011100010100
31102210212212221102122
432000031302130110
5221243204000040
610524001355112
71041414614516
oct160015623424
942725787378
1015036000020
1164164803a8
122ab7638a98
131558142042
14a28d15bb6
155d00761b5
hex380372714

15036000020 has 12 divisors (see below), whose sum is σ = 31575600084. Its totient is φ = 6014400000.

The previous prime is 15035999969. The next prime is 15036000061. The reversal of 15036000020 is 2000063051.

It can be written as a sum of positive squares in 2 ways, for example, as 4570300816 + 10465699204 = 67604^2 + 102302^2 .

It is a super-3 number, since 3×150360000203 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375899981 + ... + 375900020.

It is an arithmetic number, because the mean of its divisors is an integer number (2631300007).

Almost surely, 215036000020 is an apocalyptic number.

15036000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15036000020 is an abundant number, since it is smaller than the sum of its proper divisors (16539600064).

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

15036000020 is a wasteful number, since it uses less digits than its factorization.

15036000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751800010 (or 751800008 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 15036000020 its reverse (2000063051), we get a palindrome (17036063071).

The spelling of 15036000020 in words is "fifteen billion, thirty-six million, twenty", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 10 20 751800001 1503600002 3007200004 3759000005 7518000010 15036000020