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102020310013 = 194715239603
BaseRepresentation
bin101111100000011100…
…0100110001111111101
3100202022222012201120111
41133000320212033331
53132414144410023
6114511213150021
710241105220106
oct1370070461775
9322288181514
10102020310013
113a2a28949a6
121793248b311
13980b24835b
144d1b4c53ad
1529c17b000d
hex17c0e263fd

102020310013 has 4 divisors (see below), whose sum is σ = 102025569088. Its totient is φ = 102015050940.

The previous prime is 102020310011. The next prime is 102020310017. The reversal of 102020310013 is 310013020201.

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 not a de Polignac number, because 102020310013 - 21 = 102020310011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020309975 and 102020310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020310011) 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, 2600331 + ... + 2639272.

It is an arithmetic number, because the mean of its divisors is an integer number (25506392272).

Almost surely, 2102020310013 is an apocalyptic number.

It is an amenable number.

102020310013 is a deficient number, since it is larger than the sum of its proper divisors (5259075).

102020310013 is an equidigital number, since it uses as much as digits as its factorization.

102020310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259074.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102020310013 its reverse (310013020201), we get a palindrome (412033330214).

The spelling of 102020310013 in words is "one hundred two billion, twenty million, three hundred ten thousand, thirteen".

Divisors: 1 19471 5239603 102020310013