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102192089 = 1931173501
BaseRepresentation
bin1100001011101…
…01001111011001
321010021220012012
412011311033121
5202130121324
614050155305
72350422056
oct605651731
9233256165
10102192089
115275947a
122a282b35
13182304bc
14d80202d
158e8920e
hex61753d9

102192089 has 8 divisors (see below), whose sum is σ = 111041280. Its totient is φ = 93690000.

The previous prime is 102192061. The next prime is 102192091. The reversal of 102192089 is 980291201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102192089 - 28 = 102191833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102192029) 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, 86162 + ... + 87339.

It is an arithmetic number, because the mean of its divisors is an integer number (13880160).

Almost surely, 2102192089 is an apocalyptic number.

102192089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102192089 is a deficient number, since it is larger than the sum of its proper divisors (8849191).

102192089 is a wasteful number, since it uses less digits than its factorization.

102192089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173551.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 102192089 is about 10109.0102878571. The cubic root of 102192089 is about 467.5259905289.

The spelling of 102192089 in words is "one hundred two million, one hundred ninety-two thousand, eighty-nine".

Divisors: 1 19 31 589 173501 3296519 5378531 102192089