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1113610680 = 233557131259
BaseRepresentation
bin100001001100000…
…0101100110111000
32212121110021200000
41002120011212320
54240041020210
6302300313000
736411351240
oct10230054670
92777407600
101113610680
11521671206
12270b42760
13149937b40
14a7c82b20
1567b73ac0
hex426059b8

1113610680 has 384 divisors, whose sum is σ = 4623091200. Its totient is φ = 234772992.

The previous prime is 1113610669. The next prime is 1113610681. The reversal of 1113610680 is 860163111.

It is a super-2 number, since 2×11136106802 = 2480257493220124800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113610681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 883891 + ... + 885149.

It is an arithmetic number, because the mean of its divisors is an integer number (12039300).

Almost surely, 21113610680 is an apocalyptic number.

1113610680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113610680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311545600).

1113610680 is an abundant number, since it is smaller than the sum of its proper divisors (3509480520).

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

1113610680 is a wasteful number, since it uses less digits than its factorization.

1113610680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1113610680 is about 33370.8058038759. The cubic root of 1113610680 is about 1036.5202611431.

Adding to 1113610680 its reverse (860163111), we get a palindrome (1973773791).

The spelling of 1113610680 in words is "one billion, one hundred thirteen million, six hundred ten thousand, six hundred eighty".