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118868406 = 2344512
BaseRepresentation
bin1110001010111…
…00100110110110
322021200010210120
413011130212312
5220412242111
615443432410
72642236056
oct705344666
9267603716
10118868406
1161109658
1233985706
131b81bb47
1411b03566
15a680406
hex715c9b6

118868406 has 12 divisors (see below), whose sum is σ = 237790236. Its totient is φ = 39613900.

The previous prime is 118868401. The next prime is 118868441. The reversal of 118868406 is 604868811.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118868401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24481 + ... + 28931.

It is an arithmetic number, because the mean of its divisors is an integer number (19815853).

Almost surely, 2118868406 is an apocalyptic number.

118868406 is an abundant number, since it is smaller than the sum of its proper divisors (118921830).

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

118868406 is an frugal number, since it uses more digits than its factorization.

118868406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 118868406 is about 10902.6788451279. The cubic root of 118868406 is about 491.6870986179.

The spelling of 118868406 in words is "one hundred eighteen million, eight hundred sixty-eight thousand, four hundred six".

Divisors: 1 2 3 6 4451 8902 13353 26706 19811401 39622802 59434203 118868406