Search a number
-
+
102502313 = 199515087
BaseRepresentation
bin1100001110000…
…00111110101001
321010212122201222
412013000332221
5202220033223
614100551425
72353153364
oct607007651
9233778658
10102502313
1152950561
122a3b2575
131830b774
14d8830db
158eeb0c8
hex61c0fa9

102502313 has 4 divisors (see below), whose sum is σ = 103017600. Its totient is φ = 101987028.

The previous prime is 102502307. The next prime is 102502349. The reversal of 102502313 is 313205201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313205201 = 1409222289.

It is a cyclic number.

It is not a de Polignac number, because 102502313 - 216 = 102436777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102502291 and 102502300.

It is not an unprimeable number, because it can be changed into a prime (102502363) 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 3 ways as a sum of consecutive naturals, for example, 257345 + ... + 257742.

It is an arithmetic number, because the mean of its divisors is an integer number (25754400).

Almost surely, 2102502313 is an apocalyptic number.

It is an amenable number.

102502313 is a deficient number, since it is larger than the sum of its proper divisors (515287).

102502313 is an equidigital number, since it uses as much as digits as its factorization.

102502313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515286.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 102502313 is about 10124.3425959417. The cubic root of 102502313 is about 467.9986013668.

Adding to 102502313 its reverse (313205201), we get a palindrome (415707514).

The spelling of 102502313 in words is "one hundred two million, five hundred two thousand, three hundred thirteen".

Divisors: 1 199 515087 102502313