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102107605 = 537551933
BaseRepresentation
bin1100001011000…
…00100111010101
321010010121022011
412011200213111
5202114420410
614044304221
72346620545
oct605404725
9233117264
10102107605
1152700a56
122a242071
1318200c02
14d7bd325
158e6e18a
hex61609d5

102107605 has 8 divisors (see below), whose sum is σ = 125840952. Its totient is φ = 79478208.

The previous prime is 102107581. The next prime is 102107617. The reversal of 102107605 is 506701201.

It can be written as a sum of positive squares in 4 ways, for example, as 61873956 + 40233649 = 7866^2 + 6343^2 .

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 102107605 - 25 = 102107573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275782 + ... + 276151.

It is an arithmetic number, because the mean of its divisors is an integer number (15730119).

Almost surely, 2102107605 is an apocalyptic number.

It is an amenable number.

102107605 is a deficient number, since it is larger than the sum of its proper divisors (23733347).

102107605 is an equidigital number, since it uses as much as digits as its factorization.

102107605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551975.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 102107605 is about 10104.8307754262. The cubic root of 102107605 is about 467.3971176847.

Adding to 102107605 its reverse (506701201), we get a palindrome (608808806).

The spelling of 102107605 in words is "one hundred two million, one hundred seven thousand, six hundred five".

Divisors: 1 5 37 185 551933 2759665 20421521 102107605