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115055639 = 251593773
BaseRepresentation
bin1101101101110…
…01110000010111
322000111102122222
412312321300113
5213423240024
615230012555
72564646116
oct666716027
9260442588
10115055639
1159a45006
123264715b
131aab557a
14113cdc7d
15a17a85e
hex6db9c17

115055639 has 8 divisors (see below), whose sum is σ = 115858512. Its totient is φ = 114256000.

The previous prime is 115055627. The next prime is 115055641. The reversal of 115055639 is 936550511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115055639 - 224 = 98278423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115055599 and 115055608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115055839) 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, 148457 + ... + 149229.

It is an arithmetic number, because the mean of its divisors is an integer number (14482314).

Almost surely, 2115055639 is an apocalyptic number.

115055639 is a deficient number, since it is larger than the sum of its proper divisors (802873).

115055639 is an equidigital number, since it uses as much as digits as its factorization.

115055639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 115055639 is about 10726.3991628132. The cubic root of 115055639 is about 486.3728263630.

The spelling of 115055639 in words is "one hundred fifteen million, fifty-five thousand, six hundred thirty-nine".

Divisors: 1 251 593 773 148843 194023 458389 115055639