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1312422124 = 221389283583
BaseRepresentation
bin100111000111001…
…1111100011101100
310101110112221200211
41032032133203230
510141440001444
6334121432204
744344255366
oct11616374354
93343487624
101312422124
11613912192
1230763b664
1317bb97150
14c6435d36
157a345c34
hex4e39f8ec

1312422124 has 24 divisors (see below), whose sum is σ = 2501210880. Its totient is φ = 598925184.

The previous prime is 1312422119. The next prime is 1312422127. The reversal of 1312422124 is 4212242131.

It is a junction number, because it is equal to n+sod(n) for n = 1312422095 and 1312422104.

It is not an unprimeable number, because it can be changed into a prime (1312422127) 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, 137164 + ... + 146419.

It is an arithmetic number, because the mean of its divisors is an integer number (104217120).

Almost surely, 21312422124 is an apocalyptic number.

It is an amenable number.

1312422124 is a deficient number, since it is larger than the sum of its proper divisors (1188788756).

1312422124 is a wasteful number, since it uses less digits than its factorization.

1312422124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283689 (or 283687 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1312422124 is about 36227.3670586202. The cubic root of 1312422124 is about 1094.8581299765.

Adding to 1312422124 its reverse (4212242131), we get a palindrome (5524664255).

The spelling of 1312422124 in words is "one billion, three hundred twelve million, four hundred twenty-two thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 283583 567166 1134332 3686579 7373158 14746316 25238887 50477774 100955548 328105531 656211062 1312422124