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20374417 = 74170991
BaseRepresentation
bin100110110111…
…0001110010001
31102100010110001
41031232032101
520203440132
62004410001
7335115430
oct115561621
942303401
1020374417
1110556668
1269a6901
1342b498b
1429c5117
151bc6ce7
hex136e391

20374417 has 8 divisors (see below), whose sum is σ = 23853312. Its totient is φ = 17037600.

The previous prime is 20374399. The next prime is 20374421. The reversal of 20374417 is 71447302.

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 20374417 - 211 = 20372369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20374477) 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 7 ways as a sum of consecutive naturals, for example, 35209 + ... + 35782.

It is an arithmetic number, because the mean of its divisors is an integer number (2981664).

Almost surely, 220374417 is an apocalyptic number.

It is an amenable number.

20374417 is a deficient number, since it is larger than the sum of its proper divisors (3478895).

20374417 is an equidigital number, since it uses as much as digits as its factorization.

20374417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71039.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20374417 is about 4513.8029420877. The cubic root of 20374417 is about 273.1251734923.

The spelling of 20374417 in words is "twenty million, three hundred seventy-four thousand, four hundred seventeen".

Divisors: 1 7 41 287 70991 496937 2910631 20374417