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15230100521 = 831609114043
BaseRepresentation
bin11100010111100100…
…01110010000101001
31110022102010021021002
432023302032100221
5222142401204041
610555133524345
71046262501266
oct161362162051
943272107232
1015230100521
116505aa3a39
122b506436b5
131589411ccc
14a46a0026d
155e211759b
hex38bc8e429

15230100521 has 8 divisors (see below), whose sum is σ = 15423310560. Its totient is φ = 15037121952.

The previous prime is 15230100497. The next prime is 15230100527. The reversal of 15230100521 is 12500103251.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-15230100521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15230100493 and 15230100502.

It is not an unprimeable number, because it can be changed into a prime (15230100527) 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, 76526 + ... + 190568.

It is an arithmetic number, because the mean of its divisors is an integer number (1927913820).

Almost surely, 215230100521 is an apocalyptic number.

It is an amenable number.

15230100521 is a deficient number, since it is larger than the sum of its proper divisors (193210039).

15230100521 is a wasteful number, since it uses less digits than its factorization.

15230100521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115735.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 15230100521 its reverse (12500103251), we get a palindrome (27730203772).

The spelling of 15230100521 in words is "fifteen billion, two hundred thirty million, one hundred thousand, five hundred twenty-one".

Divisors: 1 83 1609 114043 133547 9465569 183495187 15230100521