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115251142 = 257625571
BaseRepresentation
bin1101101111010…
…01011111000110
322000212100211211
412313221133012
5214001014032
615234122034
72566422106
oct667513706
9260770754
10115251142
115a068986
123272031a
131ab53556
1411441206
15a1b8747
hex6de97c6

115251142 has 4 divisors (see below), whose sum is σ = 172876716. Its totient is φ = 57625570.

The previous prime is 115251139. The next prime is 115251161. The reversal of 115251142 is 241152511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241152511 = 1277188843.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28812784 + ... + 28812787.

It is an arithmetic number, because the mean of its divisors is an integer number (43219179).

Almost surely, 2115251142 is an apocalyptic number.

115251142 is a deficient number, since it is larger than the sum of its proper divisors (57625574).

115251142 is an equidigital number, since it uses as much as digits as its factorization.

115251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57625573.

The product of its digits is 400, while the sum is 22.

The square root of 115251142 is about 10735.5084649028. The cubic root of 115251142 is about 486.6481526912.

The spelling of 115251142 in words is "one hundred fifteen million, two hundred fifty-one thousand, one hundred forty-two".

Divisors: 1 2 57625571 115251142