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109919089 = 7132111887
BaseRepresentation
bin1101000110100…
…11101101110001
321122211110122101
412203103231301
5211114402324
614523540401
72503203550
oct643235561
9248743571
10109919089
1157056925
123098a701
1319a075a7
1410853d97
1599b3944
hex68d3b71

109919089 has 8 divisors (see below), whose sum is σ = 125727488. Its totient is φ = 94137120.

The previous prime is 109919063. The next prime is 109919101. The reversal of 109919089 is 980919901.

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

It is not a de Polignac number, because 109919089 - 29 = 109918577 is a prime.

It is a super-2 number, since 2×1099190892 = 24164412253179842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109919189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3304 + ... + 15190.

It is an arithmetic number, because the mean of its divisors is an integer number (15715936).

Almost surely, 2109919089 is an apocalyptic number.

It is an amenable number.

109919089 is a deficient number, since it is larger than the sum of its proper divisors (15808399).

109919089 is a wasteful number, since it uses less digits than its factorization.

109919089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215.

The product of its (nonzero) digits is 52488, while the sum is 46.

The square root of 109919089 is about 10484.2304915525. The cubic root of 109919089 is about 479.0244785354.

The spelling of 109919089 in words is "one hundred nine million, nine hundred nineteen thousand, eighty-nine".

Divisors: 1 7 1321 9247 11887 83209 15702727 109919089