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20872062 = 23210710837
BaseRepresentation
bin100111110011…
…1101101111110
31110021102002100
41033213231332
520320401222
62023205530
7342260331
oct117475576
943242070
1020872062
1110866542
126ba68a6
13442a343
142ab4618
151c744ac
hex13e7b7e

20872062 has 24 divisors (see below), whose sum is σ = 45649656. Its totient is φ = 6891696.

The previous prime is 20872043. The next prime is 20872067. The reversal of 20872062 is 26027802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20872067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3493 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (1902069).

Almost surely, 220872062 is an apocalyptic number.

20872062 is an abundant number, since it is smaller than the sum of its proper divisors (24777594).

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

20872062 is a wasteful number, since it uses less digits than its factorization.

20872062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952 (or 10949 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20872062 is about 4568.5951888956. The cubic root of 20872062 is about 275.3310041813.

Adding to 20872062 its reverse (26027802), we get a palindrome (46899864).

The spelling of 20872062 in words is "twenty million, eight hundred seventy-two thousand, sixty-two".

Divisors: 1 2 3 6 9 18 107 214 321 642 963 1926 10837 21674 32511 65022 97533 195066 1159559 2319118 3478677 6957354 10436031 20872062