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20412232401 = 3111771643797
BaseRepresentation
bin10011000000101010…
…011111001011010001
31221200120012211210110
4103000222133023101
5313301012414101
613213252551533
71321556053431
oct230052371321
957616184713
1020412232401
11872519a360
123b580225a9
131c03c0cc32
14db8d522c1
157e7048cd6
hex4c0a9f2d1

20412232401 has 64 divisors (see below), whose sum is σ = 31969437696. Its totient is φ = 11447116800.

The previous prime is 20412232391. The next prime is 20412232417. The reversal of 20412232401 is 10423221402.

It is not a de Polignac number, because 20412232401 - 25 = 20412232369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20412239401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25610935 + ... + 25611731.

It is an arithmetic number, because the mean of its divisors is an integer number (499522464).

Almost surely, 220412232401 is an apocalyptic number.

It is an amenable number.

20412232401 is a deficient number, since it is larger than the sum of its proper divisors (11557205295).

20412232401 is a wasteful number, since it uses less digits than its factorization.

20412232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

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

Adding to 20412232401 its reverse (10423221402), we get a palindrome (30835453803).

The spelling of 20412232401 in words is "twenty billion, four hundred twelve million, two hundred thirty-two thousand, four hundred one".

Divisors: 1 3 11 17 33 51 71 187 213 561 643 781 797 1207 1929 2343 2391 3621 7073 8767 10931 13277 13549 21219 26301 32793 39831 40647 45653 56587 120241 136959 149039 169761 360723 447117 502183 512471 622457 776101 961979 1506549 1537413 1867371 2328303 2885937 5637181 8537111 8712007 10581769 16911543 25611333 26136021 31745307 36385441 95832077 109156323 287496231 400239851 618552497 1200719553 1855657491 6804077467 20412232401