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111968740 = 22513430649
BaseRepresentation
bin1101010110010…
…00000111100100
321210200121020101
412223020013210
5212130444430
615035513444
72526501322
oct653100744
9253617211
10111968740
1158226854
12315b8884
131a2744c0
1410c28d12
159c6adca
hex6ac81e4

111968740 has 24 divisors (see below), whose sum is σ = 253222200. Its totient is φ = 41342208.

The previous prime is 111968737. The next prime is 111968777. The reversal of 111968740 is 47869111.

It can be written as a sum of positive squares in 4 ways, for example, as 116964 + 111851776 = 342^2 + 10576^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 111968740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215065 + ... + 215584.

It is an arithmetic number, because the mean of its divisors is an integer number (10550925).

Almost surely, 2111968740 is an apocalyptic number.

111968740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111968740 is an abundant number, since it is smaller than the sum of its proper divisors (141253460).

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

111968740 is a wasteful number, since it uses less digits than its factorization.

111968740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430671 (or 430669 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 111968740 is about 10581.5282450126. The cubic root of 111968740 is about 481.9836028007.

The spelling of 111968740 in words is "one hundred eleven million, nine hundred sixty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 430649 861298 1722596 2153245 4306490 5598437 8612980 11196874 22393748 27992185 55984370 111968740