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11974217960 = 2352011148859
BaseRepresentation
bin10110010011011100…
…00001000011101000
31010220111121022001002
423021232001003220
5144010344433320
65300105014132
7602506113305
oct131156010350
933814538032
1011974217960
115095152201
1223a2184348
13118aa08693
1481842a0ac
154a137b675
hex2c9b810e8

11974217960 has 32 divisors (see below), whose sum is σ = 26955568800. Its totient is φ = 4787273280.

The previous prime is 11974217951. The next prime is 11974217963. The reversal of 11974217960 is 6971247911.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11974217963) 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, 6011 + ... + 154869.

It is an arithmetic number, because the mean of its divisors is an integer number (842361525).

Almost surely, 211974217960 is an apocalyptic number.

11974217960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11974217960 is an abundant number, since it is smaller than the sum of its proper divisors (14981350840).

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

11974217960 is a wasteful number, since it uses less digits than its factorization.

11974217960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150881 (or 150877 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 11974217960 in words is "eleven billion, nine hundred seventy-four million, two hundred seventeen thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 2011 4022 8044 10055 16088 20110 40220 80440 148859 297718 595436 744295 1190872 1488590 2977180 5954360 299355449 598710898 1197421796 1496777245 2394843592 2993554490 5987108980 11974217960