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111080380 = 22517326707
BaseRepresentation
bin1101001111011…
…11001110111100
321202000110122011
412213233032330
5211414033010
615004501004
72516111335
oct647571674
9252013564
10111080380
115777a374
123124a764
131a023048
1410a7728c
159b42a8a
hex69ef3bc

111080380 has 24 divisors (see below), whose sum is σ = 246991248. Its totient is φ = 41818368.

The previous prime is 111080369. The next prime is 111080383. The reversal of 111080380 is 83080111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111080383) 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, 163014 + ... + 163693.

It is an arithmetic number, because the mean of its divisors is an integer number (10291302).

Almost surely, 2111080380 is an apocalyptic number.

111080380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111080380 is an abundant number, since it is smaller than the sum of its proper divisors (135910868).

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

111080380 is a wasteful number, since it uses less digits than its factorization.

111080380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326733 (or 326731 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 111080380 is about 10539.4677284956. The cubic root of 111080380 is about 480.7055307505.

The spelling of 111080380 in words is "one hundred eleven million, eighty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 326707 653414 1306828 1633535 3267070 5554019 6534140 11108038 22216076 27770095 55540190 111080380