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20354241 = 323294989
BaseRepresentation
bin100110110100…
…1010011000001
31102022002202210
41031221103001
520202313431
62004132333
7335002545
oct115512301
942262683
1020354241
1110542496
1269970a9
1342a873b
1429bba25
151bc0d46
hex13694c1

20354241 has 8 divisors (see below), whose sum is σ = 28319040. Its totient is φ = 12979472.

The previous prime is 20354239. The next prime is 20354281. The reversal of 20354241 is 14245302.

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 20354241 - 21 = 20354239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20354221) 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, 147426 + ... + 147563.

It is an arithmetic number, because the mean of its divisors is an integer number (3539880).

Almost surely, 220354241 is an apocalyptic number.

It is an amenable number.

20354241 is a deficient number, since it is larger than the sum of its proper divisors (7964799).

20354241 is a wasteful number, since it uses less digits than its factorization.

20354241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295015.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20354241 is about 4511.5674659701. The cubic root of 20354241 is about 273.0349886055.

Adding to 20354241 its reverse (14245302), we get a palindrome (34599543).

The spelling of 20354241 in words is "twenty million, three hundred fifty-four thousand, two hundred forty-one".

Divisors: 1 3 23 69 294989 884967 6784747 20354241