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1310330423 = 1489880007
BaseRepresentation
bin100111000011010…
…0000111000110111
310101022121200102102
41032012200320313
510140421033143
6334004532315
744320424213
oct11606407067
93338550372
101310330423
11612713706
123069b109b
1317b61405c
14c604d943
157a0810b8
hex4e1a0e37

1310330423 has 4 divisors (see below), whose sum is σ = 1311211920. Its totient is φ = 1309448928.

The previous prime is 1310330389. The next prime is 1310330429. The reversal of 1310330423 is 3240330131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1310330423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310330395 and 1310330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310330429) 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, 438515 + ... + 441492.

It is an arithmetic number, because the mean of its divisors is an integer number (327802980).

Almost surely, 21310330423 is an apocalyptic number.

1310330423 is a deficient number, since it is larger than the sum of its proper divisors (881497).

1310330423 is an equidigital number, since it uses as much as digits as its factorization.

1310330423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881496.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1310330423 is about 36198.4864738845. The cubic root of 1310330423 is about 1094.2761694619.

Adding to 1310330423 its reverse (3240330131), we get a palindrome (4550660554).

The spelling of 1310330423 in words is "one billion, three hundred ten million, three hundred thirty thousand, four hundred twenty-three".

Divisors: 1 1489 880007 1310330423