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431138103 = 31113064791
BaseRepresentation
bin11001101100101…
…010010100110111
31010001021002021220
4121230222110313
51340332404403
6110440441423
713453420254
oct3154522467
91101232256
10431138103
11201403490
12100479273
136b424606
144138c42b
1527cb4953
hex19b2a537

431138103 has 8 divisors (see below), whose sum is σ = 627110016. Its totient is φ = 261295800.

The previous prime is 431138087. The next prime is 431138117. The reversal of 431138103 is 301831134.

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

It is not a de Polignac number, because 431138103 - 24 = 431138087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431138303) 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, 6532363 + ... + 6532428.

It is an arithmetic number, because the mean of its divisors is an integer number (78388752).

Almost surely, 2431138103 is an apocalyptic number.

431138103 is a deficient number, since it is larger than the sum of its proper divisors (195971913).

431138103 is a wasteful number, since it uses less digits than its factorization.

431138103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13064805.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 431138103 is about 20763.8653193475. The cubic root of 431138103 is about 755.4495534736.

Adding to 431138103 its reverse (301831134), we get a palindrome (732969237).

The spelling of 431138103 in words is "four hundred thirty-one million, one hundred thirty-eight thousand, one hundred three".

Divisors: 1 3 11 33 13064791 39194373 143712701 431138103