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11393797180 = 225569689859
BaseRepresentation
bin10101001110001111…
…11000110000111100
31002102001102212102011
422213013320300330
5141313303002210
65122332341004
7552230451403
oct124707706074
932361385364
1011393797180
114917557507
12225b914764
1310c76a682c
147a12dc63a
1546a429d8a
hex2a71f8c3c

11393797180 has 12 divisors (see below), whose sum is σ = 23926974120. Its totient is φ = 4557518864.

The previous prime is 11393797169. The next prime is 11393797183. The reversal of 11393797180 is 8179739311.

It is a super-2 number, since 2×113937971802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11393797183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284844910 + ... + 284844949.

It is an arithmetic number, because the mean of its divisors is an integer number (1993914510).

Almost surely, 211393797180 is an apocalyptic number.

11393797180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11393797180 is an abundant number, since it is smaller than the sum of its proper divisors (12533176940).

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

11393797180 is a wasteful number, since it uses less digits than its factorization.

11393797180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569689868 (or 569689866 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 11393797180 in words is "eleven billion, three hundred ninety-three million, seven hundred ninety-seven thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 569689859 1139379718 2278759436 2848449295 5696898590 11393797180