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42136764 = 2233511397
BaseRepresentation
bin1010000010111…
…1010010111100
32221021202202220
42200233102330
541241334024
64103045340
71021104465
oct240572274
987252686
1042136764
112186aa7a
1212140850
1389642c7
14584bd6c
153a74e79
hex282f4bc

42136764 has 12 divisors (see below), whose sum is σ = 98319144. Its totient is φ = 14045584.

The previous prime is 42136763. The next prime is 42136789. The reversal of 42136764 is 46763124.

It is a happy number.

42136764 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 (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136763) 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 3 ways as a sum of consecutive naturals, for example, 1755687 + ... + 1755710.

It is an arithmetic number, because the mean of its divisors is an integer number (8193262).

Almost surely, 242136764 is an apocalyptic number.

It is an amenable number.

42136764 is an abundant number, since it is smaller than the sum of its proper divisors (56182380).

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

42136764 is a wasteful number, since it uses less digits than its factorization.

42136764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511404 (or 3511402 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 42136764 is about 6491.2836943089. The cubic root of 42136764 is about 347.9795535616.

Adding to 42136764 its reverse (46763124), we get a palindrome (88899888).

The spelling of 42136764 in words is "forty-two million, one hundred thirty-six thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 3511397 7022794 10534191 14045588 21068382 42136764