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20762086 = 229357967
BaseRepresentation
bin100111100110…
…0110111100110
31110001211020011
41033030313212
520303341321
62021000434
7341321602
oct117146746
943054204
1020762086
11107a0954
126b5311a
1343bc277
142a86502
151c51ae1
hex13ccde6

20762086 has 8 divisors (see below), whose sum is σ = 32217120. Its totient is φ = 10023048.

The previous prime is 20762039. The next prime is 20762089. The reversal of 20762086 is 68026702.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20762089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178926 + ... + 179041.

It is an arithmetic number, because the mean of its divisors is an integer number (4027140).

Almost surely, 220762086 is an apocalyptic number.

20762086 is a deficient number, since it is larger than the sum of its proper divisors (11455034).

20762086 is a wasteful number, since it uses less digits than its factorization.

20762086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357998.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20762086 is about 4556.5432073009. The cubic root of 20762086 is about 274.8465744732.

Adding to 20762086 its reverse (68026702), we get a palindrome (88788788).

The spelling of 20762086 in words is "twenty million, seven hundred sixty-two thousand, eighty-six".

Divisors: 1 2 29 58 357967 715934 10381043 20762086