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1313212412 = 22328303103
BaseRepresentation
bin100111001000110…
…0000011111111100
310101112001002202202
41032101200133330
510142140244122
6334150411032
744354056421
oct11621403774
93345032682
101313212412
11614301a16
12307960a78
1317c0b2a85
14c659dd48
157a44ee92
hex4e4607fc

1313212412 has 6 divisors (see below), whose sum is σ = 2298121728. Its totient is φ = 656606204.

The previous prime is 1313212409. The next prime is 1313212427. The reversal of 1313212412 is 2142123131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164151548 + ... + 164151555.

It is an arithmetic number, because the mean of its divisors is an integer number (383020288).

Almost surely, 21313212412 is an apocalyptic number.

It is an amenable number.

1313212412 is a deficient number, since it is larger than the sum of its proper divisors (984909316).

1313212412 is a wasteful number, since it uses less digits than its factorization.

1313212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328303107 (or 328303105 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1313212412 is about 36238.2727513329. The cubic root of 1313212412 is about 1095.0778457754.

Adding to 1313212412 its reverse (2142123131), we get a palindrome (3455335543).

The spelling of 1313212412 in words is "one billion, three hundred thirteen million, two hundred twelve thousand, four hundred twelve".

Divisors: 1 2 4 328303103 656606206 1313212412