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10115116660 = 2251145977803
BaseRepresentation
bin10010110101110100…
…00110111001110100
3222002221101011111101
421122322012321310
5131203432213120
64351414015444
7505443034015
oct113272067164
928087334441
1010115116660
1143207a0950
121b63647584
13c527c473c
146bd56b00c
153e304b90a
hex25ae86e74

10115116660 has 24 divisors (see below), whose sum is σ = 23172813216. Its totient is φ = 3678224160.

The previous prime is 10115116657. The next prime is 10115116667. The reversal of 10115116660 is 6661151101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10115116667) 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, 22988682 + ... + 22989121.

It is an arithmetic number, because the mean of its divisors is an integer number (965533884).

Almost surely, 210115116660 is an apocalyptic number.

10115116660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10115116660 is an abundant number, since it is smaller than the sum of its proper divisors (13057696556).

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

10115116660 is a wasteful number, since it uses less digits than its factorization.

10115116660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45977823 (or 45977821 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 10115116660 its reverse (6661151101), we get a palindrome (16776267761).

The spelling of 10115116660 in words is "ten billion, one hundred fifteen million, one hundred sixteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 45977803 91955606 183911212 229889015 459778030 505755833 919556060 1011511666 2023023332 2528779165 5057558330 10115116660