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20012676 = 2231667723
BaseRepresentation
bin100110001010…
…1111010000100
31101122202020020
41030111322010
520110401201
61552535140
7332050665
oct114257204
941582206
1020012676
1110329902
1268514b0
1341b9128
14292d36c
151b54a36
hex1315e84

20012676 has 12 divisors (see below), whose sum is σ = 46696272. Its totient is φ = 6670888.

The previous prime is 20012609. The next prime is 20012683. The reversal of 20012676 is 67621002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833850 + ... + 833873.

It is an arithmetic number, because the mean of its divisors is an integer number (3891356).

Almost surely, 220012676 is an apocalyptic number.

It is an amenable number.

20012676 is an abundant number, since it is smaller than the sum of its proper divisors (26683596).

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

20012676 is a wasteful number, since it uses less digits than its factorization.

20012676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667730 (or 1667728 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20012676 is about 4473.5529503964. The cubic root of 20012676 is about 271.4990961445.

Adding to 20012676 its reverse (67621002), we get a palindrome (87633678).

The spelling of 20012676 in words is "twenty million, twelve thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 1667723 3335446 5003169 6670892 10006338 20012676