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115242994 = 257621497
BaseRepresentation
bin1101101111001…
…11011111110010
322000211221200001
412313213133302
5214000233434
615234020214
72566356256
oct667473762
9260757601
10115242994
115a062849
123271766a
131ab4c929
141143c266
15a1b6114
hex6de77f2

115242994 has 4 divisors (see below), whose sum is σ = 172864494. Its totient is φ = 57621496.

The previous prime is 115242973. The next prime is 115243003. The reversal of 115242994 is 499242511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499242511 = 2917215259.

It can be written as a sum of positive squares in only one way, i.e., 82901025 + 32341969 = 9105^2 + 5687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28810747 + ... + 28810750.

Almost surely, 2115242994 is an apocalyptic number.

115242994 is a deficient number, since it is larger than the sum of its proper divisors (57621500).

115242994 is an equidigital number, since it uses as much as digits as its factorization.

115242994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57621499.

The product of its digits is 25920, while the sum is 37.

The square root of 115242994 is about 10735.1289698820. The cubic root of 115242994 is about 486.6366841060.

The spelling of 115242994 in words is "one hundred fifteen million, two hundred forty-two thousand, nine hundred ninety-four".

Divisors: 1 2 57621497 115242994