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102107185 = 5171201261
BaseRepresentation
bin1100001011000…
…00100000110001
321010010120201121
412011200200301
5202114412220
614044302241
72346616405
oct605404061
9233116647
10102107185
1152700704
122a241981
131820096b
14d7bd105
158e6deaa
hex6160831

102107185 has 8 divisors (see below), whose sum is σ = 129736296. Its totient is φ = 76880640.

The previous prime is 102107183. The next prime is 102107191. The reversal of 102107185 is 581701201.

It can be written as a sum of positive squares in 4 ways, for example, as 19642624 + 82464561 = 4432^2 + 9081^2 .

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

It is not a de Polignac number, because 102107185 - 21 = 102107183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102107183) 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, 600546 + ... + 600715.

It is an arithmetic number, because the mean of its divisors is an integer number (16217037).

Almost surely, 2102107185 is an apocalyptic number.

It is an amenable number.

102107185 is a deficient number, since it is larger than the sum of its proper divisors (27629111).

102107185 is a wasteful number, since it uses less digits than its factorization.

102107185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201283.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 102107185 is about 10104.8099932656. The cubic root of 102107185 is about 467.3964768345.

Adding to 102107185 its reverse (581701201), we get a palindrome (683808386).

The spelling of 102107185 in words is "one hundred two million, one hundred seven thousand, one hundred eighty-five".

Divisors: 1 5 17 85 1201261 6006305 20421437 102107185