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20214846 = 234124783
BaseRepresentation
bin100110100011…
…1010000111110
31102001000120000
41031013100332
520133333341
62001135130
7333552261
oct115072076
942030500
1020214846
1110457793
12692a4a6
13425a162
142982cd8
151b948b6
hex134743e

20214846 has 20 divisors (see below), whose sum is σ = 45296592. Its totient is φ = 6738228.

The previous prime is 20214829. The next prime is 20214869. The reversal of 20214846 is 64841202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 62230 + ... + 62553.

Almost surely, 220214846 is an apocalyptic number.

20214846 is an abundant number, since it is smaller than the sum of its proper divisors (25081746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20214846 is a wasteful number, since it uses less digits than its factorization.

20214846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124797 (or 124788 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20214846 is about 4496.0923033230. The cubic root of 20214846 is about 272.4102714984.

The spelling of 20214846 in words is "twenty million, two hundred fourteen thousand, eight hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 124783 249566 374349 748698 1123047 2246094 3369141 6738282 10107423 20214846