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236218116980 = 22511810905849
BaseRepresentation
bin1101101111111110110…
…0100110101101110100
3211120201110001122210102
43123333230212231310
512332233314220410
6300303410013232
723031463602536
oct3337754465564
9746643048712
10236218116980
11911a7a7258a
1239944b77218
1319376a0b621
14b60c2b5856
156227e1d2a5
hex36ffb26b74

236218116980 has 12 divisors (see below), whose sum is σ = 496058045700. Its totient is φ = 94487246784.

The previous prime is 236218116977. The next prime is 236218116989. The reversal of 236218116980 is 89611812632.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124871770384 + 111346346596 = 353372^2 + 333686^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236218116989) 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, 5905452905 + ... + 5905452944.

It is an arithmetic number, because the mean of its divisors is an integer number (41338170475).

Almost surely, 2236218116980 is an apocalyptic number.

236218116980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

236218116980 is an abundant number, since it is smaller than the sum of its proper divisors (259839928720).

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

236218116980 is a wasteful number, since it uses less digits than its factorization.

236218116980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11810905858 (or 11810905856 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 236218116980 in words is "two hundred thirty-six billion, two hundred eighteen million, one hundred sixteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 11810905849 23621811698 47243623396 59054529245 118109058490 236218116980