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42272701 = 192224879
BaseRepresentation
bin1010000101000…
…0011110111101
32221112200020121
42201100132331
541310211301
64110014541
71022212012
oct241203675
987480217
1042272701
1121953119
12121a7451
1389b1143
145885709
153aa03a1
hex28507bd

42272701 has 4 divisors (see below), whose sum is σ = 44497600. Its totient is φ = 40047804.

The previous prime is 42272687. The next prime is 42272719. The reversal of 42272701 is 10727224.

42272701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42272701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272771) 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, 1112421 + ... + 1112458.

It is an arithmetic number, because the mean of its divisors is an integer number (11124400).

Almost surely, 242272701 is an apocalyptic number.

It is an amenable number.

42272701 is a deficient number, since it is larger than the sum of its proper divisors (2224899).

42272701 is a wasteful number, since it uses less digits than its factorization.

42272701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224898.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 42272701 is about 6501.7459962690. The cubic root of 42272701 is about 348.3533563474.

Adding to 42272701 its reverse (10727224), we get a palindrome (52999925).

The spelling of 42272701 in words is "forty-two million, two hundred seventy-two thousand, seven hundred one".

Divisors: 1 19 2224879 42272701