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11818369480 = 2351911546907
BaseRepresentation
bin10110000000110111…
…00000000111001000
31010111122100101010011
423000123200013020
5143201000310410
65232420401304
7565604324461
oct130033400710
933448311104
1011818369480
115015185a05
122359b46234
13116463c748
1480185bd68
1549284418a
hex2c06e01c8

11818369480 has 32 divisors (see below), whose sum is σ = 26730570240. Its totient is φ = 4702594240.

The previous prime is 11818369477. The next prime is 11818369481. The reversal of 11818369480 is 8496381811.

It is not an unprimeable number, because it can be changed into a prime (11818369481) 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, 765814 + ... + 781093.

It is an arithmetic number, because the mean of its divisors is an integer number (835330320).

Almost surely, 211818369480 is an apocalyptic number.

11818369480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11818369480 is an abundant number, since it is smaller than the sum of its proper divisors (14912200760).

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

11818369480 is a wasteful number, since it uses less digits than its factorization.

11818369480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547109 (or 1547105 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 11818369480 in words is "eleven billion, eight hundred eighteen million, three hundred sixty-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 191 382 764 955 1528 1910 3820 7640 1546907 3093814 6187628 7734535 12375256 15469070 30938140 61876280 295459237 590918474 1181836948 1477296185 2363673896 2954592370 5909184740 11818369480