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117811634880 = 26353727112239
BaseRepresentation
bin110110110111000011…
…1101110001011000000
3102021002111101010220110
41231232013232023000
53412234234304010
6130042200111320
711340324242112
oct1555607561300
9367074333813
10117811634880
1145a66662005
121a9baa65540
13b1569ca774
1459b88573b2
1530e7cd6120
hex1b6e1ee2c0

117811634880 has 224 divisors, whose sum is σ = 385610526720. Its totient is φ = 30452060160.

The previous prime is 117811634861. The next prime is 117811634893. The reversal of 117811634880 is 88436118711.

It is a super-2 number, since 2×1178116348802 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9619801 + ... + 9632039.

Almost surely, 2117811634880 is an apocalyptic number.

117811634880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117811634880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192805263360).

117811634880 is an abundant number, since it is smaller than the sum of its proper divisors (267798891840).

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

117811634880 is a wasteful number, since it uses less digits than its factorization.

117811634880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12567 (or 12557 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 117811634880 in words is "one hundred seventeen billion, eight hundred eleven million, six hundred thirty-four thousand, eight hundred eighty".