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1312241444 = 221319248719
BaseRepresentation
bin100111000110111…
…0011011100100100
310101110012202211222
41032031303130210
510141413211234
6334113515512
744342603543
oct11615633444
93343182758
101312241444
116137a9468
12307572b98
1317bb32b37
14c63ca15a
157a30c42e
hex4e373724

1312241444 has 12 divisors (see below), whose sum is σ = 2298172800. Its totient is φ = 655620648.

The previous prime is 1312241419. The next prime is 1312241453. The reversal of 1312241444 is 4441422131.

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, 119084 + ... + 129635.

It is an arithmetic number, because the mean of its divisors is an integer number (191514400).

Almost surely, 21312241444 is an apocalyptic number.

It is an amenable number.

1312241444 is a deficient number, since it is larger than the sum of its proper divisors (985931356).

1312241444 is a wasteful number, since it uses less digits than its factorization.

1312241444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250042 (or 250040 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1312241444 is about 36224.8732779012. The cubic root of 1312241444 is about 1094.8078849520.

Adding to 1312241444 its reverse (4441422131), we get a palindrome (5753663575).

The spelling of 1312241444 in words is "one billion, three hundred twelve million, two hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 1319 2638 5276 248719 497438 994876 328060361 656120722 1312241444