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6812072431 = 172897138319
BaseRepresentation
bin1100101100000011…
…11111100111101111
3122120202010010121221
412112001333213233
5102422342304211
63043542204211
7330544442323
oct62601774757
918522103557
106812072431
11298626792a
1213a1423667
138473b78b8
144889db983
1529d096c71
hex19607f9ef

6812072431 has 8 divisors (see below), whose sum is σ = 7215324480. Its totient is φ = 6409102848.

The previous prime is 6812072383. The next prime is 6812072437. The reversal of 6812072431 is 1342702186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6812072431 is a prime.

It is a super-2 number, since 2×68120724312 = 92808661610380499522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6812072437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19911 + ... + 118408.

It is an arithmetic number, because the mean of its divisors is an integer number (901915560).

Almost surely, 26812072431 is an apocalyptic number.

6812072431 is a deficient number, since it is larger than the sum of its proper divisors (403252049).

6812072431 is a wasteful number, since it uses less digits than its factorization.

6812072431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141233.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 6812072431 is about 82535.2799171360. The cubic root of 6812072431 is about 1895.6569713852.

The spelling of 6812072431 in words is "six billion, eight hundred twelve million, seventy-two thousand, four hundred thirty-one".

Divisors: 1 17 2897 49249 138319 2351423 400710143 6812072431