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118688713481 = 1323396952219
BaseRepresentation
bin110111010001001100…
…1100000101100001001
3102100100121202100120002
41232202121200230021
53421033302312411
6130305211012345
711401134263432
oct1564231405411
9370317670502
10118688713481
1146376759158
121b00473a0b5
13b26662a0a0
145a5d128489
153149cd633b
hex1ba2660b09

118688713481 has 8 divisors (see below), whose sum is σ = 133375945920. Its totient is φ = 104795385552.

The previous prime is 118688713469. The next prime is 118688713523. The reversal of 118688713481 is 184317886811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-118688713481 is a prime.

It is a super-2 number, since 2×1186887134812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118688713081) 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, 198475811 + ... + 198476408.

It is an arithmetic number, because the mean of its divisors is an integer number (16671993240).

Almost surely, 2118688713481 is an apocalyptic number.

It is an amenable number.

118688713481 is a deficient number, since it is larger than the sum of its proper divisors (14687232439).

118688713481 is a wasteful number, since it uses less digits than its factorization.

118688713481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396952255.

The product of its digits is 2064384, while the sum is 56.

The spelling of 118688713481 in words is "one hundred eighteen billion, six hundred eighty-eight million, seven hundred thirteen thousand, four hundred eighty-one".

Divisors: 1 13 23 299 396952219 5160378847 9129901037 118688713481