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109931018 = 265218429
BaseRepresentation
bin1101000110101…
…10101000001010
321122212002000012
412203112220022
5211120243033
614524111522
72503253411
oct643265012
9248762005
10109931018
115706488a
12309955a2
1319a0cb52
1410858478
1599b7248
hex68d6a0a

109931018 has 8 divisors (see below), whose sum is σ = 164941380. Its totient is φ = 54950560.

The previous prime is 109931009. The next prime is 109931047. The reversal of 109931018 is 810139901.

It can be written as a sum of positive squares in 2 ways, for example, as 109348849 + 582169 = 10457^2 + 763^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8828 + ... + 17256.

Almost surely, 2109931018 is an apocalyptic number.

109931018 is a deficient number, since it is larger than the sum of its proper divisors (55010362).

109931018 is an equidigital number, since it uses as much as digits as its factorization.

109931018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14952.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 109931018 is about 10484.7993781474. The cubic root of 109931018 is about 479.0418066639.

The spelling of 109931018 in words is "one hundred nine million, nine hundred thirty-one thousand, eighteen".

Divisors: 1 2 6521 8429 13042 16858 54965509 109931018