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20011012413 = 375211828993
BaseRepresentation
bin10010101000101111…
…111101000100111101
31220122121020202102220
4102220233331010331
5311440304344123
613105401235553
71305614541030
oct225057750475
956577222386
1020011012413
118539770897
123a65792bb9
131b6ba62262
14d7b951017
157c1be3ce3
hex4a8bfd13d

20011012413 has 16 divisors (see below), whose sum is σ = 30551515776. Its totient is φ = 11412910080.

The previous prime is 20011012381. The next prime is 20011012421. The reversal of 20011012413 is 31421011002.

It is not a de Polignac number, because 20011012413 - 25 = 20011012381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20011012392 and 20011012401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011012433) 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, 903556 + ... + 925437.

It is an arithmetic number, because the mean of its divisors is an integer number (1909469736).

Almost surely, 220011012413 is an apocalyptic number.

It is an amenable number.

20011012413 is a deficient number, since it is larger than the sum of its proper divisors (10540503363).

20011012413 is a wasteful number, since it uses less digits than its factorization.

20011012413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829524.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20011012413 its reverse (31421011002), we get a palindrome (51432023415).

The spelling of 20011012413 in words is "twenty billion, eleven million, twelve thousand, four hundred thirteen".

Divisors: 1 3 7 21 521 1563 3647 10941 1828993 5486979 12802951 38408853 952905353 2858716059 6670337471 20011012413