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13431103 = 72383423
BaseRepresentation
bin110011001111…
…000100111111
3221021101000021
4303033010333
511414243403
61155513011
7222106510
oct63170477
927241007
1013431103
117643a94
1245b8767
132a234ca
141ad8a07
1512a48bd
hexccf13f

13431103 has 8 divisors (see below), whose sum is σ = 16017408. Its totient is φ = 11011704.

The previous prime is 13431059. The next prime is 13431109. The reversal of 13431103 is 30113431.

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-13431103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431109) 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, 41551 + ... + 41872.

It is an arithmetic number, because the mean of its divisors is an integer number (2002176).

Almost surely, 213431103 is an apocalyptic number.

13431103 is a deficient number, since it is larger than the sum of its proper divisors (2586305).

13431103 is an equidigital number, since it uses as much as digits as its factorization.

13431103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83453.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13431103 is about 3664.8469272263. The cubic root of 13431103 is about 237.7044031630.

Adding to 13431103 its reverse (30113431), we get a palindrome (43544534).

The spelling of 13431103 in words is "thirteen million, four hundred thirty-one thousand, one hundred three".

Divisors: 1 7 23 161 83423 583961 1918729 13431103