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115001010990 = 23251277789011
BaseRepresentation
bin110101100011010011…
…0000010101100101110
3101222211121200122202100
41223012212002230232
53341010224322430
6124455234435530
711210555315265
oct1530646025456
9358747618670
10115001010990
1144854088748
121a355732ba6
13aac96209c8
1457cd4695dc
152ed119d960
hex1ac6982b2e

115001010990 has 24 divisors (see below), whose sum is σ = 299002628808. Its totient is φ = 30666936240.

The previous prime is 115001010959. The next prime is 115001011033. The reversal of 115001010990 is 99010100511.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638894416 + ... + 638894595.

It is an arithmetic number, because the mean of its divisors is an integer number (12458442867).

Almost surely, 2115001010990 is an apocalyptic number.

115001010990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115001010990 is an abundant number, since it is smaller than the sum of its proper divisors (184001617818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115001010990 is a wasteful number, since it uses less digits than its factorization.

115001010990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277789024 (or 1277789021 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

The spelling of 115001010990 in words is "one hundred fifteen billion, one million, ten thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1277789011 2555578022 3833367033 6388945055 7666734066 11500101099 12777890110 19166835165 23000202198 38333670330 57500505495 115001010990