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20326341 = 379371033
BaseRepresentation
bin100110110001…
…0011111000101
31102020200111110
41031202133011
520200420331
62003355233
7334525320
oct115423705
942220443
1020326341
1110523532
126982b19
134298b29
1429b17b7
151bb7946
hex13627c5

20326341 has 16 divisors (see below), whose sum is σ = 31036544. Its totient is φ = 11591424.

The previous prime is 20326307. The next prime is 20326343. The reversal of 20326341 is 14362302.

It is a happy number.

It is not a de Polignac number, because 20326341 - 26 = 20326277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20326343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19161 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (1939784).

Almost surely, 220326341 is an apocalyptic number.

20326341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20326341 is a deficient number, since it is larger than the sum of its proper divisors (10710203).

20326341 is a wasteful number, since it uses less digits than its factorization.

20326341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20326341 is about 4508.4743539251. The cubic root of 20326341 is about 272.9101799001.

Adding to 20326341 its reverse (14362302), we get a palindrome (34688643).

The spelling of 20326341 in words is "twenty million, three hundred twenty-six thousand, three hundred forty-one".

Divisors: 1 3 7 21 937 1033 2811 3099 6559 7231 19677 21693 967921 2903763 6775447 20326341