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942972685 = 5661285317
BaseRepresentation
bin111000001101001…
…001111100001101
32102201100222100021
4320031021330031
53412400111220
6233323102141
732240064334
oct7015117415
92381328307
10942972685
11444313376
12223971951
13120491305
148d344d1b
1557bb94aa
hex38349f0d

942972685 has 8 divisors (see below), whose sum is σ = 1133283096. Its totient is φ = 753234240.

The previous prime is 942972659. The next prime is 942972689. The reversal of 942972685 is 586279249.

942972685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 421809444 + 521163241 = 20538^2 + 22829^2 .

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

It is not a de Polignac number, because 942972685 - 215 = 942939917 is a prime.

It is a super-2 number, since 2×9429726852 = 1778394969312218450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942972689) 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, 139354 + ... + 145963.

It is an arithmetic number, because the mean of its divisors is an integer number (141660387).

Almost surely, 2942972685 is an apocalyptic number.

It is an amenable number.

942972685 is a deficient number, since it is larger than the sum of its proper divisors (190310411).

942972685 is a wasteful number, since it uses less digits than its factorization.

942972685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285983.

The product of its digits is 2177280, while the sum is 52.

The square root of 942972685 is about 30707.8603129557. The cubic root of 942972685 is about 980.6176465334.

The spelling of 942972685 in words is "nine hundred forty-two million, nine hundred seventy-two thousand, six hundred eighty-five".

Divisors: 1 5 661 3305 285317 1426585 188594537 942972685