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109319380 = 2255465969
BaseRepresentation
bin1101000010000…
…01010011010100
321121200222222221
412201001103110
5210441210010
614503032124
72465125252
oct641012324
9247628887
10109319380
11567872a5
123073b644
1319857631
14107395d2
1598e5dda
hex68414d4

109319380 has 12 divisors (see below), whose sum is σ = 229570740. Its totient is φ = 43727744.

The previous prime is 109319351. The next prime is 109319387. The reversal of 109319380 is 83913901.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 72692676 = 6052^2 + 8526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109319387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732965 + ... + 2733004.

It is an arithmetic number, because the mean of its divisors is an integer number (19130895).

Almost surely, 2109319380 is an apocalyptic number.

109319380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109319380 is an abundant number, since it is smaller than the sum of its proper divisors (120251360).

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

109319380 is a wasteful number, since it uses less digits than its factorization.

109319380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465978 (or 5465976 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 109319380 is about 10455.5908489191. The cubic root of 109319380 is about 478.1517173901.

The spelling of 109319380 in words is "one hundred nine million, three hundred nineteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5465969 10931938 21863876 27329845 54659690 109319380