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115907380 = 2255795369
BaseRepresentation
bin1101110100010…
…01101100110100
322002002201000221
412322021230310
5214133014010
615300144124
72605124251
oct672115464
9262081027
10115907380
115a476a26
1232998044
131b023164
1411572428
15a297dda
hex6e89b34

115907380 has 12 divisors (see below), whose sum is σ = 243405540. Its totient is φ = 46362944.

The previous prime is 115907371. The next prime is 115907383. The reversal of 115907380 is 83709511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72795024 + 43112356 = 8532^2 + 6566^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115907383) 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, 2897665 + ... + 2897704.

It is an arithmetic number, because the mean of its divisors is an integer number (20283795).

Almost surely, 2115907380 is an apocalyptic number.

115907380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115907380 is an abundant number, since it is smaller than the sum of its proper divisors (127498160).

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

115907380 is a wasteful number, since it uses less digits than its factorization.

115907380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795378 (or 5795376 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 115907380 is about 10766.0289800836. The cubic root of 115907380 is about 487.5700604985.

The spelling of 115907380 in words is "one hundred fifteen million, nine hundred seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5795369 11590738 23181476 28976845 57953690 115907380