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2140253431 = 23503184999
BaseRepresentation
bin111111110010001…
…1010110011110111
312112011021010202121
41333210122303313
513340401102211
6552213020411
7104015565631
oct17744326367
95464233677
102140253431
119a9132098
124b8924707
13281542b64
14164367a51
15c7d69271
hex7f91acf7

2140253431 has 8 divisors (see below), whose sum is σ = 2237760000. Its totient is φ = 2043117912.

The previous prime is 2140253413. The next prime is 2140253441. The reversal of 2140253431 is 1343520412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140253431 - 211 = 2140251383 is a prime.

It is a super-2 number, since 2×21402534312 = 9161369497814543522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140253396 and 2140253405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140253441) 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, 80931 + ... + 104068.

It is an arithmetic number, because the mean of its divisors is an integer number (279720000).

Almost surely, 22140253431 is an apocalyptic number.

2140253431 is a deficient number, since it is larger than the sum of its proper divisors (97506569).

2140253431 is a wasteful number, since it uses less digits than its factorization.

2140253431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185525.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2140253431 is about 46262.8731381872. The cubic root of 2140253431 is about 1288.7096106391.

Adding to 2140253431 its reverse (1343520412), we get a palindrome (3483773843).

The spelling of 2140253431 in words is "two billion, one hundred forty million, two hundred fifty-three thousand, four hundred thirty-one".

Divisors: 1 23 503 11569 184999 4254977 93054497 2140253431