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20192019113 = 710729392009
BaseRepresentation
bin10010110011100010…
…011100001010101001
31221010012211211221202
4102303202130022221
5312323124102423
613135345013545
71313243221250
oct226342341251
957105754852
1020192019113
118621960902
123ab63242b5
131b9a3c9406
14d979cb797
157d2a4a728
hex4b389c2a9

20192019113 has 16 divisors (see below), whose sum is σ = 23372012160. Its totient is φ = 17086989696.

The previous prime is 20192019101. The next prime is 20192019121. The reversal of 20192019113 is 31191029102.

It is not a de Polignac number, because 20192019113 - 216 = 20191953577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20192019413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173453 + ... + 265461.

It is an arithmetic number, because the mean of its divisors is an integer number (1460750760).

Almost surely, 220192019113 is an apocalyptic number.

It is an amenable number.

20192019113 is a deficient number, since it is larger than the sum of its proper divisors (3179993047).

20192019113 is a wasteful number, since it uses less digits than its factorization.

20192019113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92416.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 20192019113 in words is "twenty billion, one hundred ninety-two million, nineteen thousand, one hundred thirteen".

Divisors: 1 7 107 293 749 2051 31351 92009 219457 644063 9844963 26958637 68914741 188710459 2884574159 20192019113