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20914310 = 252091431
BaseRepresentation
bin100111111001…
…0000010000110
31110100120001002
41033302002012
520323224220
62024133302
7342524444
oct117620206
943316032
1020914310
111089525a
127007232
134443641
142ac5b94
151c81c75
hex13f2086

20914310 has 8 divisors (see below), whose sum is σ = 37645776. Its totient is φ = 8365720.

The previous prime is 20914279. The next prime is 20914319. The reversal of 20914310 is 1341902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×209143102 = 874816725552200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914319) 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 3 ways as a sum of consecutive naturals, for example, 1045706 + ... + 1045725.

It is an arithmetic number, because the mean of its divisors is an integer number (4705722).

Almost surely, 220914310 is an apocalyptic number.

20914310 is a deficient number, since it is larger than the sum of its proper divisors (16731466).

20914310 is a wasteful number, since it uses less digits than its factorization.

20914310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091438.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20914310 is about 4573.2165922904. The cubic root of 20914310 is about 275.5166485877.

The spelling of 20914310 in words is "twenty million, nine hundred fourteen thousand, three hundred ten".

Divisors: 1 2 5 10 2091431 4182862 10457155 20914310