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2013403431 = 31351625729
BaseRepresentation
bin111100000000010…
…0001100100100111
312012022120111021110
41320000201210213
513110412402211
6531442120103
7100615434564
oct17000414447
95168514243
102013403431
11943571886
12482350033
1326118b0a0
1415158786b
15bbb5dea6
hex78021927

2013403431 has 8 divisors (see below), whose sum is σ = 2891040880. Its totient is φ = 1239017472.

The previous prime is 2013403429. The next prime is 2013403481. The reversal of 2013403431 is 1343043102.

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

It is not a de Polignac number, because 2013403431 - 21 = 2013403429 is a prime.

It is a super-3 number, since 3×20134034313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2013403398 and 2013403407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013403481) 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, 25812826 + ... + 25812903.

It is an arithmetic number, because the mean of its divisors is an integer number (361380110).

Almost surely, 22013403431 is an apocalyptic number.

2013403431 is a deficient number, since it is larger than the sum of its proper divisors (877637449).

2013403431 is a wasteful number, since it uses less digits than its factorization.

2013403431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51625745.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2013403431 is about 44870.9642307807. The cubic root of 2013403431 is about 1262.7293299182.

Adding to 2013403431 its reverse (1343043102), we get a palindrome (3356446533).

The spelling of 2013403431 in words is "two billion, thirteen million, four hundred three thousand, four hundred thirty-one".

Divisors: 1 3 13 39 51625729 154877187 671134477 2013403431