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102192018 = 2367254209
BaseRepresentation
bin1100001011101…
…01001110010010
321010021220002120
412011311032102
5202130121033
614050155110
72350421625
oct605651622
9233256076
10102192018
1152759415
122a282a96
1318230466
14d801dbc
158e891b3
hex6175392

102192018 has 16 divisors (see below), whose sum is σ = 207435360. Its totient is φ = 33555456.

The previous prime is 102192017. The next prime is 102192023. The reversal of 102192018 is 810291201.

It is not an unprimeable number, because it can be changed into a prime (102192017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126703 + ... + 127506.

It is an arithmetic number, because the mean of its divisors is an integer number (12964710).

Almost surely, 2102192018 is an apocalyptic number.

102192018 is an abundant number, since it is smaller than the sum of its proper divisors (105243342).

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

102192018 is a wasteful number, since it uses less digits than its factorization.

102192018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254281.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 102192018 is about 10109.0067761378. The cubic root of 102192018 is about 467.5258822545.

It can be divided in two parts, 1021 and 92018, that added together give a palindrome (93039).

The spelling of 102192018 in words is "one hundred two million, one hundred ninety-two thousand, eighteen".

Divisors: 1 2 3 6 67 134 201 402 254209 508418 762627 1525254 17032003 34064006 51096009 102192018