Search a number
-
+
15025013900 = 22521311557703
BaseRepresentation
bin11011111111000111…
…11000010010001100
31102210010012210022022
431333203320102030
5221232400421100
610522530105312
71041222340151
oct157743702214
942703183268
1015025013900
116410257366
122ab3a1b238
131555a96690
14a27696228
155ce105e85
hex37f8f848c

15025013900 has 36 divisors (see below), whose sum is σ = 35112304752. Its totient is φ = 5547696960.

The previous prime is 15025013897. The next prime is 15025013959. The reversal of 15025013900 is 931052051.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 15025013900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5777552 + ... + 5780151.

Almost surely, 215025013900 is an apocalyptic number.

15025013900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15025013900 is an abundant number, since it is smaller than the sum of its proper divisors (20087290852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15025013900 is a wasteful number, since it uses less digits than its factorization.

15025013900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557730 (or 11557723 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 15025013900 its reverse (931052051), we get a palindrome (15956065951).

The spelling of 15025013900 in words is "fifteen billion, twenty-five million, thirteen thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 11557703 23115406 46230812 57788515 115577030 150250139 231154060 288942575 300500278 577885150 601000556 751250695 1155770300 1502501390 3005002780 3756253475 7512506950 15025013900