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1312423441 = 74716723887
BaseRepresentation
bin100111000111001…
…1111111000010001
310101110120000111121
41032032133320101
510141440022231
6334121442241
744344262260
oct11616377021
93343500447
101312423441
1161391317a
12307640381
1317bb97924
14c64365d7
157a346311
hex4e39fe11

1312423441 has 16 divisors (see below), whose sum is σ = 1541062656. Its totient is φ = 1094360976.

The previous prime is 1312423417. The next prime is 1312423481. The reversal of 1312423441 is 1443242131.

It is a cyclic number.

It is not a de Polignac number, because 1312423441 - 27 = 1312423313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312423481) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 43000 + ... + 66886.

It is an arithmetic number, because the mean of its divisors is an integer number (96316416).

Almost surely, 21312423441 is an apocalyptic number.

It is an amenable number.

1312423441 is a deficient number, since it is larger than the sum of its proper divisors (228639215).

1312423441 is a wasteful number, since it uses less digits than its factorization.

1312423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24108.

The product of its digits is 2304, while the sum is 25.

The square root of 1312423441 is about 36227.3852354817. The cubic root of 1312423441 is about 1094.8584962021.

Adding to 1312423441 its reverse (1443242131), we get a palindrome (2755665572).

The spelling of 1312423441 in words is "one billion, three hundred twelve million, four hundred twenty-three thousand, four hundred forty-one".

Divisors: 1 7 47 167 329 1169 7849 23887 54943 167209 1122689 3989129 7858823 27923903 187489063 1312423441