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39682085 = 525730881
BaseRepresentation
bin1001011101100…
…0000000100101
32202200001120212
42113120000211
540124311320
63534305205
7661202132
oct227300045
982601525
1039682085
1120443813
1211358205
1382b4c31
1453ad589
15373c9c5
hex25d8025

39682085 has 8 divisors (see below), whose sum is σ = 47805336. Its totient is φ = 31621120.

The previous prime is 39682081. The next prime is 39682091. The reversal of 39682085 is 58028693.

It can be written as a sum of positive squares in 4 ways, for example, as 26388769 + 13293316 = 5137^2 + 3646^2 .

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

It is not a de Polignac number, because 39682085 - 22 = 39682081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39682081) 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, 14156 + ... + 16725.

It is an arithmetic number, because the mean of its divisors is an integer number (5975667).

Almost surely, 239682085 is an apocalyptic number.

It is an amenable number.

39682085 is a deficient number, since it is larger than the sum of its proper divisors (8123251).

39682085 is a wasteful number, since it uses less digits than its factorization.

39682085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31143.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 39682085 is about 6299.3717940760. The cubic root of 39682085 is about 341.0867332974.

The spelling of 39682085 in words is "thirty-nine million, six hundred eighty-two thousand, eighty-five".

Divisors: 1 5 257 1285 30881 154405 7936417 39682085