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20064707 = 137321143
BaseRepresentation
bin100110010001…
…0100111000011
31101202101121022
41030202213003
520114032312
61554020055
7332355455
oct114424703
941671538
1020064707
1110364a03
12687762b
134206a10
1429442d5
151b65172
hex13229c3

20064707 has 8 divisors (see below), whose sum is σ = 21905184. Its totient is φ = 18266688.

The previous prime is 20064701. The next prime is 20064721. The reversal of 20064707 is 70746002.

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 20064707 - 210 = 20063683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20064701) 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, 9623 + ... + 11520.

It is an arithmetic number, because the mean of its divisors is an integer number (2738148).

Almost surely, 220064707 is an apocalyptic number.

20064707 is a deficient number, since it is larger than the sum of its proper divisors (1840477).

20064707 is a wasteful number, since it uses less digits than its factorization.

20064707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21229.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20064707 is about 4479.3645754727. The cubic root of 20064707 is about 271.7341828920.

The spelling of 20064707 in words is "twenty million, sixty-four thousand, seven hundred seven".

Divisors: 1 13 73 949 21143 274859 1543439 20064707