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10392661 = 17611333
BaseRepresentation
bin100111101001…
…010001010101
3201120000001101
4213221101111
510130031121
61010430101
7154223206
oct47512125
921500041
1010392661
115959184
123592331
1321cb506
1415475ad
15da4491
hex9e9455

10392661 has 4 divisors (see below), whose sum is σ = 11004012. Its totient is φ = 9781312.

The previous prime is 10392659. The next prime is 10392667. The reversal of 10392661 is 16629301.

10392661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16629301 = 131279177.

It can be written as a sum of positive squares in 2 ways, for example, as 5262436 + 5130225 = 2294^2 + 2265^2 .

It is a cyclic number.

It is not a de Polignac number, because 10392661 - 21 = 10392659 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 (10392667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305650 + ... + 305683.

It is an arithmetic number, because the mean of its divisors is an integer number (2751003).

Almost surely, 210392661 is an apocalyptic number.

It is an amenable number.

10392661 is a deficient number, since it is larger than the sum of its proper divisors (611351).

10392661 is an equidigital number, since it uses as much as digits as its factorization.

10392661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611350.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 10392661 is about 3223.7650348622. The cubic root of 10392661 is about 218.2272200918.

The spelling of 10392661 in words is "ten million, three hundred ninety-two thousand, six hundred sixty-one".

Divisors: 1 17 611333 10392661