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765082081 = 3114495479
BaseRepresentation
bin101101100110100…
…011100111100001
31222022122012022101
4231212203213201
53031330111311
6203530210401
724650043001
oct5546434741
91868565271
10765082081
11362961545
12194283a01
13c26785ba
147387a001
154727aec1
hex2d9a39e1

765082081 has 8 divisors (see below), whose sum is σ = 769392000. Its totient is φ = 760784640.

The previous prime is 765082049. The next prime is 765082091. The reversal of 765082081 is 180280567.

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

It is a cyclic number.

It is not a de Polignac number, because 765082081 - 25 = 765082049 is a prime.

It is a super-2 number, since 2×7650820812 = 1170701181334581122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 765082081.

It is not an unprimeable number, because it can be changed into a prime (765082091) 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, 136900 + ... + 142378.

It is an arithmetic number, because the mean of its divisors is an integer number (96174000).

Almost surely, 2765082081 is an apocalyptic number.

It is an amenable number.

765082081 is a deficient number, since it is larger than the sum of its proper divisors (4309919).

765082081 is a wasteful number, since it uses less digits than its factorization.

765082081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6239.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 765082081 is about 27660.1171544880. The cubic root of 765082081 is about 914.6101361985.

The spelling of 765082081 in words is "seven hundred sixty-five million, eighty-two thousand, eighty-one".

Divisors: 1 311 449 5479 139639 1703969 2460071 765082081