Search a number
-
+
20008084 = 227170451
BaseRepresentation
bin100110001010…
…0110010010100
31101122111221011
41030110302110
520110224314
61552502004
7332031415
oct114246224
941574834
1020008084
1110326408
12684a904
1341b7005
14292b80c
151b534c4
hex1314c94

20008084 has 12 divisors (see below), whose sum is σ = 35507808. Its totient is φ = 9863000.

The previous prime is 20008073. The next prime is 20008097. The reversal of 20008084 is 48080002.

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, 34942 + ... + 35509.

It is an arithmetic number, because the mean of its divisors is an integer number (2958984).

Almost surely, 220008084 is an apocalyptic number.

It is an amenable number.

20008084 is a deficient number, since it is larger than the sum of its proper divisors (15499724).

20008084 is a wasteful number, since it uses less digits than its factorization.

20008084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70526 (or 70524 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 20008084 is about 4473.0396823637. The cubic root of 20008084 is about 271.4783289864.

Adding to 20008084 its reverse (48080002), we get a palindrome (68088086).

The spelling of 20008084 in words is "twenty million, eight thousand, eighty-four".

Divisors: 1 2 4 71 142 284 70451 140902 281804 5002021 10004042 20008084