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118993920 = 2103561127
BaseRepresentation
bin1110001011110…
…11010000000000
322021220111222020
413011323100000
5220430301140
615450241440
72643301023
oct705732000
9267814866
10118993920
1161194991
1233a26280
131b864006
1411b371ba
15a6a76d0
hex717b400

118993920 has 176 divisors, whose sum is σ = 389879808. Its totient is φ = 30965760.

The previous prime is 118993891. The next prime is 118993921. The reversal of 118993920 is 29399811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118993921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936897 + ... + 937023.

Almost surely, 2118993920 is an apocalyptic number.

118993920 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 118993920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194939904).

118993920 is an abundant number, since it is smaller than the sum of its proper divisors (270885888).

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

118993920 is a wasteful number, since it uses less digits than its factorization.

118993920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 118993920 is about 10908.4334347330. The cubic root of 118993920 is about 491.8600963835.

The spelling of 118993920 in words is "one hundred eighteen million, nine hundred ninety-three thousand, nine hundred twenty".