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115225239 = 3231669931
BaseRepresentation
bin1101101111000…
…11001010010111
322000211001022110
412313203022113
5213444201424
615233402103
72566253433
oct667431227
9260731273
10115225239
115a050478
1232709333
131ab4481c
14114359c3
15a1b0c29
hex6de3297

115225239 has 8 divisors (see below), whose sum is σ = 160313472. Its totient is φ = 73476920.

The previous prime is 115225181. The next prime is 115225249. The reversal of 115225239 is 932522511.

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 115225239 - 29 = 115224727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115225249) 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, 834897 + ... + 835034.

It is an arithmetic number, because the mean of its divisors is an integer number (20039184).

Almost surely, 2115225239 is an apocalyptic number.

115225239 is a deficient number, since it is larger than the sum of its proper divisors (45088233).

115225239 is a wasteful number, since it uses less digits than its factorization.

115225239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669957.

The product of its digits is 5400, while the sum is 30.

The square root of 115225239 is about 10734.3019801010. The cubic root of 115225239 is about 486.6116914715.

It can be divided in two parts, 11522 and 5239, that added together give a palindrome (16761).

The spelling of 115225239 in words is "one hundred fifteen million, two hundred twenty-five thousand, two hundred thirty-nine".

Divisors: 1 3 23 69 1669931 5009793 38408413 115225239