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20131403241 = 319538380287
BaseRepresentation
bin10010101111111011…
…001101010111101001
31220221222210020121110
4102233323031113221
5312212114400431
613125341500533
71311606050505
oct225773152751
956858706543
1020131403241
1185a071a244
123a99b71749
131b8a995031
14d8d92d305
157cc575346
hex4afecd5e9

20131403241 has 32 divisors (see below), whose sum is σ = 29134909440. Its totient is φ = 12324222144.

The previous prime is 20131403239. The next prime is 20131403249. The reversal of 20131403241 is 14230413102.

It is not a de Polignac number, because 20131403241 - 21 = 20131403239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20131403249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210600 + ... + 290886.

It is an arithmetic number, because the mean of its divisors is an integer number (910465920).

Almost surely, 220131403241 is an apocalyptic number.

It is an amenable number.

20131403241 is a deficient number, since it is larger than the sum of its proper divisors (9003506199).

20131403241 is a wasteful number, since it uses less digits than its factorization.

20131403241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80445.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20131403241 its reverse (14230413102), we get a palindrome (34361816343).

The spelling of 20131403241 in words is "twenty billion, one hundred thirty-one million, four hundred three thousand, two hundred forty-one".

Divisors: 1 3 19 53 57 83 159 249 1007 1577 3021 4399 4731 13197 80287 83581 240861 250743 1525453 4255211 4576359 6663821 12765633 19991463 80849009 126612599 242547027 353182513 379837797 1059547539 6710467747 20131403241