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20260841 = 33161211
BaseRepresentation
bin100110101001…
…0011111101001
31102010100122112
41031102133221
520141321331
62002132105
7334133336
oct115223751
942110575
1020260841
11104892a7
126951035
134275083
14299598d
151ba332b
hex13527e9

20260841 has 4 divisors (see below), whose sum is σ = 20322384. Its totient is φ = 20199300.

The previous prime is 20260837. The next prime is 20260873. The reversal of 20260841 is 14806202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14806202 = 27403101.

It is a cyclic number.

It is not a de Polignac number, because 20260841 - 22 = 20260837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20260741) 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, 30275 + ... + 30936.

It is an arithmetic number, because the mean of its divisors is an integer number (5080596).

Almost surely, 220260841 is an apocalyptic number.

It is an amenable number.

20260841 is a deficient number, since it is larger than the sum of its proper divisors (61543).

20260841 is an equidigital number, since it uses as much as digits as its factorization.

20260841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61542.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20260841 is about 4501.2043943816. The cubic root of 20260841 is about 272.6167207519.

The spelling of 20260841 in words is "twenty million, two hundred sixty thousand, eight hundred forty-one".

Divisors: 1 331 61211 20260841