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1312104320 = 2752050163
BaseRepresentation
bin100111000110101…
…0001111110000000
310101102221210202022
41032031101332000
510141344314240
6334110541012
744341463012
oct11615217600
93342853668
101312104320
1161371543a
12307507768
1317bab55b7
14c63921b2
157a2d19b5
hex4e351f80

1312104320 has 32 divisors (see below), whose sum is σ = 3136750920. Its totient is φ = 524841472.

The previous prime is 1312104301. The next prime is 1312104361. The reversal of 1312104320 is 234012131.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024442 + ... + 1025721.

Almost surely, 21312104320 is an apocalyptic number.

1312104320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312104320 is an abundant number, since it is smaller than the sum of its proper divisors (1824646600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312104320 is an equidigital number, since it uses as much as digits as its factorization.

1312104320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050182 (or 2050170 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312104320 is about 36222.9805510259. The cubic root of 1312104320 is about 1094.7697492703.

Adding to 1312104320 its reverse (234012131), we get a palindrome (1546116451).

The spelling of 1312104320 in words is "one billion, three hundred twelve million, one hundred four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 2050163 4100326 8200652 10250815 16401304 20501630 32802608 41003260 65605216 82006520 131210432 164013040 262420864 328026080 656052160 1312104320