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2431430957 = 23567103171
BaseRepresentation
bin1001000011101100…
…1011000100101101
320021110011111020102
42100323023010231
514434421242312
61041134000445
7114152551664
oct22073130455
96243144212
102431430957
11103853007a
1257a346125
132c9972057
14190cc1ddb
15e36d3ec2
hex90ecb12d

2431430957 has 4 divisors (see below), whose sum is σ = 2431557696. Its totient is φ = 2431304220.

The previous prime is 2431430921. The next prime is 2431430959. The reversal of 2431430957 is 7590341342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7590341342 = 23795170671.

It is a cyclic number.

It is not a de Polignac number, because 2431430957 - 212 = 2431426861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2431430957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431430959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28019 + ... + 75152.

It is an arithmetic number, because the mean of its divisors is an integer number (607889424).

Almost surely, 22431430957 is an apocalyptic number.

It is an amenable number.

2431430957 is a deficient number, since it is larger than the sum of its proper divisors (126739).

2431430957 is a wasteful number, since it uses less digits than its factorization.

2431430957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126738.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 2431430957 is about 49309.5422509680. The cubic root of 2431430957 is about 1344.6852691998.

The spelling of 2431430957 in words is "two billion, four hundred thirty-one million, four hundred thirty thousand, nine hundred fifty-seven".

Divisors: 1 23567 103171 2431430957