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115890241 = 1737917987
BaseRepresentation
bin1101110100001…
…01100001000001
322002001211112011
412322011201001
5214131441431
615255532521
72605023265
oct672054101
9262054464
10115890241
115a465065
123298a141
131b01840c
141156a0a5
15a292cb1
hex6e85841

115890241 has 8 divisors (see below), whose sum is σ = 123037920. Its totient is φ = 108779328.

The previous prime is 115890233. The next prime is 115890251. The reversal of 115890241 is 142098511.

It is a happy number.

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

It is not a de Polignac number, because 115890241 - 23 = 115890233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115890221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (15379740).

Almost surely, 2115890241 is an apocalyptic number.

It is an amenable number.

115890241 is a deficient number, since it is larger than the sum of its proper divisors (7147679).

115890241 is a wasteful number, since it uses less digits than its factorization.

115890241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 115890241 is about 10765.2329747201. The cubic root of 115890241 is about 487.5460273000.

The spelling of 115890241 in words is "one hundred fifteen million, eight hundred ninety thousand, two hundred forty-one".

Divisors: 1 17 379 6443 17987 305779 6817073 115890241