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6431416944 = 243133987853
BaseRepresentation
bin1011111110101011…
…11010001001110000
3121121012211211110120
411333111322021300
5101132420320234
62542103330240
7315243066501
oct57725721160
917535754416
106431416944
112800404817
1212b5a50980
137b658a274
14450230ba8
15279955049
hex17f57a270

6431416944 has 20 divisors (see below), whose sum is σ = 16614493896. Its totient is φ = 2143805632.

The previous prime is 6431416921. The next prime is 6431416949. The reversal of 6431416944 is 4496141346.

It is a junction number, because it is equal to n+sod(n) for n = 6431416896 and 6431416905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431416949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66993879 + ... + 66993974.

Almost surely, 26431416944 is an apocalyptic number.

It is an amenable number.

6431416944 is an abundant number, since it is smaller than the sum of its proper divisors (10183076952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6431416944 is a wasteful number, since it uses less digits than its factorization.

6431416944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133987864 (or 133987858 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 6431416944 is about 80196.1155169002. The cubic root of 6431416944 is about 1859.6685870389.

The spelling of 6431416944 in words is "six billion, four hundred thirty-one million, four hundred sixteen thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 133987853 267975706 401963559 535951412 803927118 1071902824 1607854236 2143805648 3215708472 6431416944