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692081 = 13139383
BaseRepresentation
bin10101000111101110001
31022011100122
42220331301
5134121311
622500025
75611505
oct2507561
91264318
10692081
11432a75
12294615
131b3020
14140305
15da0db
hexa8f71

692081 has 8 divisors (see below), whose sum is σ = 752640. Its totient is φ = 632592.

The previous prime is 692071. The next prime is 692089. The reversal of 692081 is 180296.

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 692081 - 26 = 692017 is a prime.

It is a super-2 number, since 2×6920812 = 957952221122, 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 692081.

It is not an unprimeable number, because it can be changed into a prime (692089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (94080).

2692081 is an apocalyptic number.

It is an amenable number.

692081 is a deficient number, since it is larger than the sum of its proper divisors (60559).

692081 is a wasteful number, since it uses less digits than its factorization.

692081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 692081 is about 831.9140580613. The cubic root of 692081 is about 88.4543052008.

The spelling of 692081 in words is "six hundred ninety-two thousand, eighty-one".

Divisors: 1 13 139 383 1807 4979 53237 692081