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20895246 = 234128983
BaseRepresentation
bin100111110110…
…1011000001110
31110022120220000
41033231120032
520322121441
62023505130
7342415041
oct117553016
943276800
1020895246
11108819a9
126bb81a6
134437a68
142abcc58
151c7b2b6
hex13ed60e

20895246 has 20 divisors (see below), whose sum is σ = 46821192. Its totient is φ = 6965028.

The previous prime is 20895239. The next prime is 20895253. The reversal of 20895246 is 64259802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20895239) and next prime (20895253).

It is a super-2 number, since 2×208952462 = 873222610801032, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20895246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 64330 + ... + 64653.

Almost surely, 220895246 is an apocalyptic number.

20895246 is an abundant number, since it is smaller than the sum of its proper divisors (25925946).

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

20895246 is a wasteful number, since it uses less digits than its factorization.

20895246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128997 (or 128988 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 20895246 is about 4571.1318073317. The cubic root of 20895246 is about 275.4329093343.

The spelling of 20895246 in words is "twenty million, eight hundred ninety-five thousand, two hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 128983 257966 386949 773898 1160847 2321694 3482541 6965082 10447623 20895246