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20124422013 = 310316506441
BaseRepresentation
bin10010101111100000…
…100100111101111101
31220221111122120011110
4102233200210331331
5312203323001023
613124532112233
71311462523203
oct225740447575
956844576143
1020124422013
118597791133
123a97765679
131b893bc527
14d8ca33073
157cbb46a93
hex4af824f7d

20124422013 has 8 divisors (see below), whose sum is σ = 26858592576. Its totient is φ = 13403266400.

The previous prime is 20124422009. The next prime is 20124422039. The reversal of 20124422013 is 31022442102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20124422013 - 22 = 20124422009 is a prime.

It is a super-2 number, since 2×201244220132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124422053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3250128 + ... + 3256313.

It is an arithmetic number, because the mean of its divisors is an integer number (3357324072).

Almost surely, 220124422013 is an apocalyptic number.

It is an amenable number.

20124422013 is a deficient number, since it is larger than the sum of its proper divisors (6734170563).

20124422013 is a wasteful number, since it uses less digits than its factorization.

20124422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507475.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20124422013 its reverse (31022442102), we get a palindrome (51146864115).

The spelling of 20124422013 in words is "twenty billion, one hundred twenty-four million, four hundred twenty-two thousand, thirteen".

Divisors: 1 3 1031 3093 6506441 19519323 6708140671 20124422013