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20207082 = 2371493229
BaseRepresentation
bin100110100010…
…1010111101010
31102000121220110
41031011113222
520133111312
62001035150
7333520530
oct115052752
942017813
1020207082
1110451975
126925ab6
13425676c
142980150
151b9243c
hex13455ea

20207082 has 32 divisors (see below), whose sum is σ = 46512000. Its totient is φ = 5732928.

The previous prime is 20207081. The next prime is 20207093. The reversal of 20207082 is 28070202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20207081) 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 15 ways as a sum of consecutive naturals, for example, 4644 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (1453500).

Almost surely, 220207082 is an apocalyptic number.

20207082 is an abundant number, since it is smaller than the sum of its proper divisors (26304918).

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

20207082 is a wasteful number, since it uses less digits than its factorization.

20207082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20207082 is about 4495.2288039654. The cubic root of 20207082 is about 272.3753917838.

Adding to 20207082 its reverse (28070202), we get a palindrome (48277284).

The spelling of 20207082 in words is "twenty million, two hundred seven thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 149 298 447 894 1043 2086 3129 3229 6258 6458 9687 19374 22603 45206 67809 135618 481121 962242 1443363 2886726 3367847 6735694 10103541 20207082