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39068857 = 43190647
BaseRepresentation
bin1001010100001…
…0010010111001
32201111220101201
42111002102321
540000200412
63513214201
7653036242
oct225022271
981456351
1039068857
1120065013
1211101361
13812ba89
14528dcc9
15366ae57
hex25424b9

39068857 has 4 divisors (see below), whose sum is σ = 39159936. Its totient is φ = 38977780.

The previous prime is 39068851. The next prime is 39068863. The reversal of 39068857 is 75886093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75886093 = 85398887.

It is an interprime number because it is at equal distance from previous prime (39068851) and next prime (39068863).

It is a cyclic number.

It is not a de Polignac number, because 39068857 - 23 = 39068849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39068851) 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 3 ways as a sum of consecutive naturals, for example, 44893 + ... + 45754.

It is an arithmetic number, because the mean of its divisors is an integer number (9789984).

Almost surely, 239068857 is an apocalyptic number.

It is an amenable number.

39068857 is a deficient number, since it is larger than the sum of its proper divisors (91079).

39068857 is an equidigital number, since it uses as much as digits as its factorization.

39068857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91078.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 39068857 is about 6250.5085393110. The cubic root of 39068857 is about 339.3206069990.

The spelling of 39068857 in words is "thirty-nine million, sixty-eight thousand, eight hundred fifty-seven".

Divisors: 1 431 90647 39068857