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20534302 = 257117981
BaseRepresentation
bin100111001010…
…1010000011110
31102122020202201
41032111100132
520224044202
62012042114
7336352525
oct116252036
942566681
1020534302
11106557a8
126a6333a
13433c699
142a274bc
151c09387
hex139541e

20534302 has 8 divisors (see below), whose sum is σ = 30857112. Its totient is φ = 10248600.

The previous prime is 20534281. The next prime is 20534303. The reversal of 20534302 is 20343502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20534302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7849 + ... + 10132.

It is an arithmetic number, because the mean of its divisors is an integer number (3857139).

Almost surely, 220534302 is an apocalyptic number.

20534302 is a deficient number, since it is larger than the sum of its proper divisors (10322810).

20534302 is a wasteful number, since it uses less digits than its factorization.

20534302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18554.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20534302 is about 4531.4790080061. The cubic root of 20534302 is about 273.8377482578.

Adding to 20534302 its reverse (20343502), we get a palindrome (40877804).

The spelling of 20534302 in words is "twenty million, five hundred thirty-four thousand, three hundred two".

Divisors: 1 2 571 1142 17981 35962 10267151 20534302