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20614403 = 531013851
BaseRepresentation
bin100111010100…
…0110100000011
31102210022122102
41032220310003
520234130103
62013501015
7340135205
oct116506403
942708572
1020614403
11106aa9a7
126aa176b
134369c94
142a48775
151c22e88
hex13a8d03

20614403 has 8 divisors (see below), whose sum is σ = 21216816. Its totient is φ = 20020000.

The previous prime is 20614393. The next prime is 20614409. The reversal of 20614403 is 30441602.

It is a happy number.

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 20614403 - 28 = 20614147 is a prime.

It is a super-2 number, since 2×206144032 = 849907222092818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20614409) 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, 3428 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (2652102).

Almost surely, 220614403 is an apocalyptic number.

20614403 is a deficient number, since it is larger than the sum of its proper divisors (602413).

20614403 is a wasteful number, since it uses less digits than its factorization.

20614403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20614403 is about 4540.3086899461. The cubic root of 20614403 is about 274.1933519027.

The spelling of 20614403 in words is "twenty million, six hundred fourteen thousand, four hundred three".

Divisors: 1 53 101 3851 5353 204103 388951 20614403