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115245305 = 572470389
BaseRepresentation
bin1101101111010…
…00000011111001
322000212001211122
412313220003321
5214000322210
615234035025
72566366100
oct667500371
9260761748
10115245305
115a06455a
1232718a75
131ab509b6
141143d037
15a1b6b55
hex6de80f9

115245305 has 12 divisors (see below), whose sum is σ = 160873380. Its totient is φ = 79025184.

The previous prime is 115245281. The next prime is 115245307. The reversal of 115245305 is 503542511.

It can be written as a sum of positive squares in 2 ways, for example, as 32307856 + 82937449 = 5684^2 + 9107^2 .

It is not a de Polignac number, because 115245305 - 28 = 115245049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115245307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234950 + ... + 235439.

It is an arithmetic number, because the mean of its divisors is an integer number (13406115).

Almost surely, 2115245305 is an apocalyptic number.

It is an amenable number.

115245305 is a deficient number, since it is larger than the sum of its proper divisors (45628075).

115245305 is an equidigital number, since it uses as much as digits as its factorization.

115245305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470408 (or 470401 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 115245305 is about 10735.2366066147. The cubic root of 115245305 is about 486.6399369715.

Adding to 115245305 its reverse (503542511), we get a palindrome (618787816).

The spelling of 115245305 in words is "one hundred fifteen million, two hundred forty-five thousand, three hundred five".

Divisors: 1 5 7 35 49 245 470389 2351945 3292723 16463615 23049061 115245305