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34120320431 = 271912548849
BaseRepresentation
bin11111110001101110…
…101100010110101111
310021001220101212102112
4133301232230112233
51024334300223211
623401420514235
72315350636601
oct376156542657
9107056355375
1034120320431
111351a03882a
1267429ab97b
1332a9bc3522
14191975d171
15d4a71988b
hex7f1bac5af

34120320431 has 4 divisors (see below), whose sum is σ = 34132872000. Its totient is φ = 34107768864.

The previous prime is 34120320379. The next prime is 34120320449. The reversal of 34120320431 is 13402302143.

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 34120320431 - 214 = 34120304047 is a prime.

It is a super-2 number, since 2×341203204312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34120320397 and 34120320406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34120320461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6271706 + ... + 6277143.

It is an arithmetic number, because the mean of its divisors is an integer number (8533218000).

Almost surely, 234120320431 is an apocalyptic number.

34120320431 is a deficient number, since it is larger than the sum of its proper divisors (12551569).

34120320431 is a wasteful number, since it uses less digits than its factorization.

34120320431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12551568.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 34120320431 its reverse (13402302143), we get a palindrome (47522622574).

The spelling of 34120320431 in words is "thirty-four billion, one hundred twenty million, three hundred twenty thousand, four hundred thirty-one".

Divisors: 1 2719 12548849 34120320431