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115092290 = 2511509229
BaseRepresentation
bin1101101110000…
…10101101000010
322000120021221102
412313002231002
5213430423130
615230454402
72565161015
oct667025502
9260507842
10115092290
1159a6a5a5
1232664402
131aac9161
14113dd37c
15a186645
hex6dc2b42

115092290 has 8 divisors (see below), whose sum is σ = 207166140. Its totient is φ = 46036912.

The previous prime is 115092259. The next prime is 115092293. The reversal of 115092290 is 92290511.

It can be written as a sum of positive squares in 2 ways, for example, as 114982729 + 109561 = 10723^2 + 331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (115092293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5754605 + ... + 5754624.

Almost surely, 2115092290 is an apocalyptic number.

115092290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115092290 is a deficient number, since it is larger than the sum of its proper divisors (92073850).

115092290 is a wasteful number, since it uses less digits than its factorization.

115092290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11509236.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 115092290 is about 10728.1074752260. The cubic root of 115092290 is about 486.4244656050.

The spelling of 115092290 in words is "one hundred fifteen million, ninety-two thousand, two hundred ninety".

Divisors: 1 2 5 10 11509229 23018458 57546145 115092290