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103690285 = 520738057
BaseRepresentation
bin1100010111000…
…11000000101101
321020010000022221
412023203000231
5203021042120
614142235341
72366232016
oct613430055
9236100287
10103690285
1153592056
122a885b51
13186363ca
14dab200d
1591830aa
hex62e302d

103690285 has 4 divisors (see below), whose sum is σ = 124428348. Its totient is φ = 82952224.

The previous prime is 103690267. The next prime is 103690289. The reversal of 103690285 is 582096301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38613796 + 65076489 = 6214^2 + 8067^2 .

It is a cyclic number.

It is not a de Polignac number, because 103690285 - 213 = 103682093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103690285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103690289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10369024 + ... + 10369033.

It is an arithmetic number, because the mean of its divisors is an integer number (31107087).

Almost surely, 2103690285 is an apocalyptic number.

It is an amenable number.

103690285 is a deficient number, since it is larger than the sum of its proper divisors (20738063).

103690285 is an equidigital number, since it uses as much as digits as its factorization.

103690285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20738062.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 103690285 is about 10182.8426777595. The cubic root of 103690285 is about 469.7996505369.

The spelling of 103690285 in words is "one hundred three million, six hundred ninety thousand, two hundred eighty-five".

Divisors: 1 5 20738057 103690285