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939680207 = 1949456853
BaseRepresentation
bin111000000000100…
…110000111001111
32102111011200220122
4320000212013033
53411024231312
6233124335155
732200102304
oct7000460717
92374150818
10939680207
11442474714
122228444bb
1311c8aa7bb
148cb290ab
1557768b72
hex380261cf

939680207 has 4 divisors (see below), whose sum is σ = 989137080. Its totient is φ = 890223336.

The previous prime is 939680191. The next prime is 939680213. The reversal of 939680207 is 702086939.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702086939 = 4507155777.

It is a cyclic number.

It is not a de Polignac number, because 939680207 - 24 = 939680191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939680297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24728408 + ... + 24728445.

It is an arithmetic number, because the mean of its divisors is an integer number (247284270).

Almost surely, 2939680207 is an apocalyptic number.

939680207 is a deficient number, since it is larger than the sum of its proper divisors (49456873).

939680207 is a wasteful number, since it uses less digits than its factorization.

939680207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49456872.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 939680207 is about 30654.2037410858. The cubic root of 939680207 is about 979.4750093142.

The spelling of 939680207 in words is "nine hundred thirty-nine million, six hundred eighty thousand, two hundred seven".

Divisors: 1 19 49456853 939680207