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15200205031 = 1110711129011
BaseRepresentation
bin11100010100000000…
…01011100011100111
31110020022212102100201
432022000023203213
5222112223030111
610552145051331
71045450416364
oct161200134347
943208772321
1015200205031
1164a0135020
122b42626b47
13158317577b
14a42a5b46b
155de6ae6c1
hex38a00b8e7

15200205031 has 8 divisors (see below), whose sum is σ = 16583718528. Its totient is φ = 13816971000.

The previous prime is 15200205011. The next prime is 15200205047. The reversal of 15200205031 is 13050200251.

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 15200205031 - 29 = 15200204519 is a prime.

It is a super-2 number, since 2×152002050312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15200205011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53316 + ... + 182326.

It is an arithmetic number, because the mean of its divisors is an integer number (2072964816).

Almost surely, 215200205031 is an apocalyptic number.

15200205031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15200205031 is a deficient number, since it is larger than the sum of its proper divisors (1383513497).

15200205031 is a wasteful number, since it uses less digits than its factorization.

15200205031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139733.

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 15200205031 its reverse (13050200251), we get a palindrome (28250405282).

The spelling of 15200205031 in words is "fifteen billion, two hundred million, two hundred five thousand, thirty-one".

Divisors: 1 11 10711 117821 129011 1419121 1381836821 15200205031