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1268942373 = 321713163311
BaseRepresentation
bin100101110100010…
…1000011000100101
310021102201221200200
41023220220120211
510044322123443
6325525501113
743305555306
oct11350503045
93242657620
101268942373
115a1315206
122b4b71799
13172b8279a
14c07587ad
1576607dd3
hex4ba28625

1268942373 has 24 divisors (see below), whose sum is σ = 1955581056. Its totient is φ = 790108800.

The previous prime is 1268942327. The next prime is 1268942393. The reversal of 1268942373 is 3732498621.

It is not a de Polignac number, because 1268942373 - 28 = 1268942117 is a prime.

It is a super-2 number, since 2×12689423732 = 3220429491989742258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268942393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11613 + ... + 51698.

It is an arithmetic number, because the mean of its divisors is an integer number (81482544).

Almost surely, 21268942373 is an apocalyptic number.

It is an amenable number.

1268942373 is a deficient number, since it is larger than the sum of its proper divisors (686638683).

1268942373 is a wasteful number, since it uses less digits than its factorization.

1268942373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63465 (or 63462 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1268942373 is about 35622.2174071183. The cubic root of 1268942373 is about 1082.6314356280.

The spelling of 1268942373 in words is "one billion, two hundred sixty-eight million, nine hundred forty-two thousand, three hundred seventy-three".

Divisors: 1 3 9 17 51 131 153 393 1179 2227 6681 20043 63311 189933 569799 1076287 3228861 8293741 9686583 24881223 74643669 140993597 422980791 1268942373