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431243103 = 3373885073
BaseRepresentation
bin11001101101000…
…011111101011111
31010001110102022210
4121231003331133
51340344234403
6110443011503
713454335344
oct3155037537
91101412283
10431243103
11201475365
12100509b93
136b460345
14413b87cb
1527cd5b03
hex19b43f5f

431243103 has 8 divisors (see below), whose sum is σ = 590531248. Its totient is φ = 279725184.

The previous prime is 431243051. The next prime is 431243119. The reversal of 431243103 is 301342134.

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

It is not a de Polignac number, because 431243103 - 26 = 431243039 is a prime.

It is a super-2 number, since 2×4312431032 = 371941227770137218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431243103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431243203) 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, 1942426 + ... + 1942647.

It is an arithmetic number, because the mean of its divisors is an integer number (73816406).

Almost surely, 2431243103 is an apocalyptic number.

431243103 is a deficient number, since it is larger than the sum of its proper divisors (159288145).

431243103 is a wasteful number, since it uses less digits than its factorization.

431243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885113.

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

The square root of 431243103 is about 20766.3935963855. The cubic root of 431243103 is about 755.5108762563.

Adding to 431243103 its reverse (301342134), we get a palindrome (732585237).

The spelling of 431243103 in words is "four hundred thirty-one million, two hundred forty-three thousand, one hundred three".

Divisors: 1 3 37 111 3885073 11655219 143747701 431243103