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1312030232 = 23257638147
BaseRepresentation
bin100111000110011…
…1111111000011000
310101102211001010022
41032030333320120
510141334431412
6334105210012
744341034012
oct11614777030
93342731108
101312030232
11613674807
12307490908
1317ba8a966
14c63731b2
157a2b9a72
hex4e33fe18

1312030232 has 16 divisors (see below), whose sum is σ = 2469632760. Its totient is φ = 653461504.

The previous prime is 1312030201. The next prime is 1312030243. The reversal of 1312030232 is 2320302131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312030232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317018 + ... + 321129.

Almost surely, 21312030232 is an apocalyptic number.

It is an amenable number.

1312030232 is a deficient number, since it is larger than the sum of its proper divisors (1157602528).

1312030232 is a wasteful number, since it uses less digits than its factorization.

1312030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638410 (or 638406 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1312030232 is about 36221.9578708827. The cubic root of 1312030232 is about 1094.7491434830.

Adding to 1312030232 its reverse (2320302131), we get a palindrome (3632332363).

The spelling of 1312030232 in words is "one billion, three hundred twelve million, thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 257 514 1028 2056 638147 1276294 2552588 5105176 164003779 328007558 656015116 1312030232