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20676154 = 231333029
BaseRepresentation
bin100111011011…
…1111000111010
31102220110100111
41032313320322
520243114104
62015054534
7340513222
oct116677072
942813314
1020676154
1110742334
126b1144a
13438c115
142a63082
151c36404
hex13b7e3a

20676154 has 8 divisors (see below), whose sum is σ = 31114260. Its totient is φ = 10304736.

The previous prime is 20676151. The next prime is 20676167. The reversal of 20676154 is 45167602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11404129 + 9272025 = 3377^2 + 3045^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20676151) 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, 15889 + ... + 17140.

Almost surely, 220676154 is an apocalyptic number.

20676154 is a deficient number, since it is larger than the sum of its proper divisors (10438106).

20676154 is a wasteful number, since it uses less digits than its factorization.

20676154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33344.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20676154 is about 4547.1039134816. The cubic root of 20676154 is about 274.4668635066.

The spelling of 20676154 in words is "twenty million, six hundred seventy-six thousand, one hundred fifty-four".

Divisors: 1 2 313 626 33029 66058 10338077 20676154