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22000252 = 2219289477
BaseRepresentation
bin101001111101…
…1001001111100
31112101201200011
41103323021330
521113002002
62103313004
7354666451
oct123731174
945351604
1022000252
111146712a
12744b764
134733a01
142cc9828
151de88d7
hex14fb27c

22000252 has 12 divisors (see below), whose sum is σ = 40526920. Its totient is φ = 10421136.

The previous prime is 22000249. The next prime is 22000289. The reversal of 22000252 is 25200022.

It is a super-2 number, since 2×220002522 = 968022176127008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144663 + ... + 144814.

Almost surely, 222000252 is an apocalyptic number.

It is an amenable number.

22000252 is a deficient number, since it is larger than the sum of its proper divisors (18526668).

22000252 is a wasteful number, since it uses less digits than its factorization.

22000252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289500 (or 289498 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 22000252 is about 4690.4426230368. The cubic root of 22000252 is about 280.2050029310.

Adding to 22000252 its reverse (25200022), we get a palindrome (47200274).

The spelling of 22000252 in words is "twenty-two million, two hundred fifty-two", and thus it is an aban number.

Divisors: 1 2 4 19 38 76 289477 578954 1157908 5500063 11000126 22000252