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15016234493 = 131693682277
BaseRepresentation
bin11011111110000100…
…11000110111111101
31102202111200202020002
431333002120313331
5221223124000433
610522014004045
71041054613211
oct157702306775
942674622202
1015016234493
116406300257
122ab0aa6625
131554011570
14a2644c941
155cd46e9e8
hex37f098dfd

15016234493 has 8 divisors (see below), whose sum is σ = 16180905048. Its totient is φ = 13852931904.

The previous prime is 15016234469. The next prime is 15016234511. The reversal of 15016234493 is 39443261051.

It can be written as a sum of positive squares in 4 ways, for example, as 3821959684 + 11194274809 = 61822^2 + 105803^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15016234493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15016234433) 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, 319130 + ... + 363147.

It is an arithmetic number, because the mean of its divisors is an integer number (2022613131).

Almost surely, 215016234493 is an apocalyptic number.

15016234493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15016234493 is a deficient number, since it is larger than the sum of its proper divisors (1164670555).

15016234493 is a wasteful number, since it uses less digits than its factorization.

15016234493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683983.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 15016234493 in words is "fifteen billion, sixteen million, two hundred thirty-four thousand, four hundred ninety-three".

Divisors: 1 13 1693 22009 682277 8869601 1155094961 15016234493