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20031301015 = 511364205473
BaseRepresentation
bin10010101001111101…
…010110010110010111
31220201000102112011121
4102221331112112113
5312011003113030
613111404144411
71306252151335
oct225175262627
956630375147
1020031301015
11854a168a30
123a70538107
131b73016b4b
14d80512b55
157c38a047a
hex4a9f56597

20031301015 has 8 divisors (see below), whose sum is σ = 26222794128. Its totient is φ = 14568218880.

The previous prime is 20031301009. The next prime is 20031301027. The reversal of 20031301015 is 51010313002.

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

It is not a de Polignac number, because 20031301015 - 213 = 20031292823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20031301015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182102682 + ... + 182102791.

It is an arithmetic number, because the mean of its divisors is an integer number (3277849266).

Almost surely, 220031301015 is an apocalyptic number.

20031301015 is a deficient number, since it is larger than the sum of its proper divisors (6191493113).

20031301015 is a wasteful number, since it uses less digits than its factorization.

20031301015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364205489.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 20031301015 its reverse (51010313002), we get a palindrome (71041614017).

The spelling of 20031301015 in words is "twenty billion, thirty-one million, three hundred one thousand, fifteen".

Divisors: 1 5 11 55 364205473 1821027365 4006260203 20031301015