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15053100321 = 372102402043
BaseRepresentation
bin11100000010011110…
…00001010100100001
31102212002001201122010
432001033001110201
5221312043202241
610525412103133
71042013145600
oct160117012441
942762051563
1015053100321
1164250a0086
122b01304aa9
13155b84b66c
14a2b2c7a37
155d1802d16
hex3813c1521

15053100321 has 12 divisors (see below), whose sum is σ = 23347666032. Its totient is φ = 8601771528.

The previous prime is 15053100319. The next prime is 15053100371. The reversal of 15053100321 is 12300135051.

It is not a de Polignac number, because 15053100321 - 21 = 15053100319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (15053100371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51200875 + ... + 51201168.

It is an arithmetic number, because the mean of its divisors is an integer number (1945638836).

Almost surely, 215053100321 is an apocalyptic number.

It is an amenable number.

15053100321 is a deficient number, since it is larger than the sum of its proper divisors (8294565711).

15053100321 is a wasteful number, since it uses less digits than its factorization.

15053100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102402060 (or 102402053 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 15053100321 its reverse (12300135051), we get a palindrome (27353235372).

The spelling of 15053100321 in words is "fifteen billion, fifty-three million, one hundred thousand, three hundred twenty-one".

Divisors: 1 3 7 21 49 147 102402043 307206129 716814301 2150442903 5017700107 15053100321