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26989612 = 2213519031
BaseRepresentation
bin110011011110…
…1010000101100
31212210012210021
41212331100230
523402131422
62402251524
7445256626
oct146752054
955705707
1026989612
1114264771
129056ba4
13578c9b0
143827c16
152581dc7
hex19bd42c

26989612 has 12 divisors (see below), whose sum is σ = 50865136. Its totient is φ = 12456720.

The previous prime is 26989607. The next prime is 26989621. The reversal of 26989612 is 21698962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259464 + ... + 259567.

Almost surely, 226989612 is an apocalyptic number.

It is an amenable number.

26989612 is a deficient number, since it is larger than the sum of its proper divisors (23875524).

26989612 is a wasteful number, since it uses less digits than its factorization.

26989612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519048 (or 519046 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 26989612 is about 5195.1527407767. The cubic root of 26989612 is about 299.9615209907.

The spelling of 26989612 in words is "twenty-six million, nine hundred eighty-nine thousand, six hundred twelve".

Divisors: 1 2 4 13 26 52 519031 1038062 2076124 6747403 13494806 26989612