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2140113431 = 19591909111
BaseRepresentation
bin111111110001111…
…1000101000010111
312112011000000201102
41333203320220113
513340332112211
6552210020315
7104014443521
oct17743705027
95464000642
102140113431
119a9046995
124b887769b
132814c4211
1416432ca11
15c7d3ca3b
hex7f8f8a17

2140113431 has 8 divisors (see below), whose sum is σ = 2290934400. Its totient is φ = 1993110840.

The previous prime is 2140113421. The next prime is 2140113433. The reversal of 2140113431 is 1343110412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2140113431 is a prime.

It is a super-3 number, since 3×21401134313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140113433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953435 + ... + 955676.

It is an arithmetic number, because the mean of its divisors is an integer number (286366800).

Almost surely, 22140113431 is an apocalyptic number.

2140113431 is a deficient number, since it is larger than the sum of its proper divisors (150820969).

2140113431 is a wasteful number, since it uses less digits than its factorization.

2140113431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909189.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2140113431 is about 46261.3600210802. The cubic root of 2140113431 is about 1288.6815106523.

Adding to 2140113431 its reverse (1343110412), we get a palindrome (3483223843).

The spelling of 2140113431 in words is "two billion, one hundred forty million, one hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 19 59 1121 1909111 36273109 112637549 2140113431