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207039 = 379859
BaseRepresentation
bin110010100010111111
3101112000010
4302202333
523111124
64234303
71521420
oct624277
9345003
10207039
11131608
129b993
1373311
1455647
1541529
hex328bf

207039 has 8 divisors (see below), whose sum is σ = 315520. Its totient is φ = 118296.

The previous prime is 207037. The next prime is 207041. The reversal of 207039 is 930702.

It is an interprime number because it is at equal distance from previous prime (207037) and next prime (207041).

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

It is not a de Polignac number, because 207039 - 21 = 207037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9859 = 207039 / (2 + 0 + 7 + 0 + 3 + 9).

It is a Duffinian number.

207039 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207037) 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, 4909 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (39440).

2207039 is an apocalyptic number.

207039 is a deficient number, since it is larger than the sum of its proper divisors (108481).

207039 is an equidigital number, since it uses as much as digits as its factorization.

207039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 207039 is about 455.0153843553. The cubic root of 207039 is about 59.1585318005.

The spelling of 207039 in words is "two hundred seven thousand, thirty-nine".

Divisors: 1 3 7 21 9859 29577 69013 207039