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6139071431 = 29532078927
BaseRepresentation
bin1011011011110101…
…01100101111000111
3120211211202010210222
411231322230233013
5100033100241211
62453101334555
7305063150303
oct55572545707
916754663728
106139071431
112670389259
121233b6745b
1376ab3c55c
14423490d03
1525de591db
hex16deacbc7

6139071431 has 4 divisors (see below), whose sum is σ = 6141153312. Its totient is φ = 6136989552.

The previous prime is 6139071401. The next prime is 6139071479. The reversal of 6139071431 is 1341709316.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6139071431 - 214 = 6139055047 is a prime.

It is a super-2 number, since 2×61390714312 = 75376396069840775522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6139071391 and 6139071400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139071401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036511 + ... + 1042416.

It is an arithmetic number, because the mean of its divisors is an integer number (1535288328).

Almost surely, 26139071431 is an apocalyptic number.

6139071431 is a deficient number, since it is larger than the sum of its proper divisors (2081881).

6139071431 is a wasteful number, since it uses less digits than its factorization.

6139071431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081880.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 6139071431 is about 78352.2267137316. The cubic root of 6139071431 is about 1831.0529172194.

The spelling of 6139071431 in words is "six billion, one hundred thirty-nine million, seventy-one thousand, four hundred thirty-one".

Divisors: 1 2953 2078927 6139071431