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102313213 = 227450719
BaseRepresentation
bin1100001100100…
…10110011111101
321010112001100021
412012102303331
5202143010323
614052532141
72351435152
oct606226375
9233461307
10102313213
1152831482
122a321051
1318273682
14d834229
158eb005d
hex6192cfd

102313213 has 4 divisors (see below), whose sum is σ = 102764160. Its totient is φ = 101862268.

The previous prime is 102313199. The next prime is 102313217. The reversal of 102313213 is 312313201.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102313213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102313217) 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, 225133 + ... + 225586.

It is an arithmetic number, because the mean of its divisors is an integer number (25691040).

Almost surely, 2102313213 is an apocalyptic number.

It is an amenable number.

102313213 is a deficient number, since it is larger than the sum of its proper divisors (450947).

102313213 is an equidigital number, since it uses as much as digits as its factorization.

102313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450946.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 102313213 is about 10114.9994068215. Note that the first 3 decimals coincide. The cubic root of 102313213 is about 467.7106305866.

Adding to 102313213 its reverse (312313201), we get a palindrome (414626414).

The spelling of 102313213 in words is "one hundred two million, three hundred thirteen thousand, two hundred thirteen".

Divisors: 1 227 450719 102313213