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20122003013 = 72874571859
BaseRepresentation
bin10010101111010111…
…010110011001000101
31220221100002122220212
4102233113112121011
5312202213044023
613124404205205
71311433126550
oct225727263105
956840078825
1020122003013
118596389762
123a96999805
131b88a53478
14d8c5a3697
157cb819e78
hex4af5d6645

20122003013 has 4 divisors (see below), whose sum is σ = 22996574880. Its totient is φ = 17247431148.

The previous prime is 20122002917. The next prime is 20122003049. The reversal of 20122003013 is 31030022102.

It is a happy number.

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 20122003013 - 210 = 20122001989 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 (20122000013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437285923 + ... + 1437285936.

It is an arithmetic number, because the mean of its divisors is an integer number (5749143720).

Almost surely, 220122003013 is an apocalyptic number.

It is an amenable number.

20122003013 is a deficient number, since it is larger than the sum of its proper divisors (2874571867).

20122003013 is an equidigital number, since it uses as much as digits as its factorization.

20122003013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874571866.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20122003013 its reverse (31030022102), we get a palindrome (51152025115).

The spelling of 20122003013 in words is "twenty billion, one hundred twenty-two million, three thousand, thirteen".

Divisors: 1 7 2874571859 20122003013