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42579612 = 22321182767
BaseRepresentation
bin1010001001101…
…1011010011100
32222010021020200
42202123122130
541400021422
64120343500
71024630545
oct242333234
988107220
1042579612
1122042769
1212314b90
138a8aa4a
1459254cc
153b112ac
hex289b69c

42579612 has 18 divisors (see below), whose sum is σ = 107631888. Its totient is φ = 14193192.

The previous prime is 42579571. The next prime is 42579619. The reversal of 42579612 is 21697524.

42579612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1182767 = 42579612 / (4 + 2 + 5 + 7 + 9 + 6 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42579619) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 591348 + ... + 591419.

Almost surely, 242579612 is an apocalyptic number.

It is an amenable number.

42579612 is an abundant number, since it is smaller than the sum of its proper divisors (65052276).

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

42579612 is a wasteful number, since it uses less digits than its factorization.

42579612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182777 (or 1182772 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 42579612 is about 6525.3055100892. The cubic root of 42579612 is about 349.1943701536.

The spelling of 42579612 in words is "forty-two million, five hundred seventy-nine thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1182767 2365534 3548301 4731068 7096602 10644903 14193204 21289806 42579612