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210420142013 = 220395515271
BaseRepresentation
bin1100001111111000000…
…1001000111110111101
3202010010112121202010002
43003332001020332331
511421420024021023
6240355441524045
721126256460534
oct3037601107675
9663115552102
10210420142013
1181269759114
1234945343625
1316ac5080b93
14a281d6d31b
155718173b28
hex30fe048fbd

210420142013 has 4 divisors (see below), whose sum is σ = 210515659488. Its totient is φ = 210324624540.

The previous prime is 210420142003. The next prime is 210420142039. The reversal of 210420142013 is 310241024012.

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 210420142013 - 26 = 210420141949 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 (210420142003) 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, 47755433 + ... + 47759838.

It is an arithmetic number, because the mean of its divisors is an integer number (52628914872).

Almost surely, 2210420142013 is an apocalyptic number.

It is an amenable number.

210420142013 is a deficient number, since it is larger than the sum of its proper divisors (95517475).

210420142013 is an equidigital number, since it uses as much as digits as its factorization.

210420142013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95517474.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 210420142013 its reverse (310241024012), we get a palindrome (520661166025).

The spelling of 210420142013 in words is "two hundred ten billion, four hundred twenty million, one hundred forty-two thousand, thirteen".

Divisors: 1 2203 95515271 210420142013