Search a number
-
+
42688758 = 2371016399
BaseRepresentation
bin1010001011011…
…0000011110110
32222022210222010
42202312003312
541412020013
64122545050
71025564010
oct242660366
988283863
1042688758
1122107772
1212368186
138ac8628
1459531b0
153b337c3
hex28b60f6

42688758 has 16 divisors (see below), whose sum is σ = 97574400. Its totient is φ = 12196776.

The previous prime is 42688753. The next prime is 42688769. The reversal of 42688758 is 85788624.

42688758 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×426887583 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42688753) 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 7 ways as a sum of consecutive naturals, for example, 508158 + ... + 508241.

It is an arithmetic number, because the mean of its divisors is an integer number (6098400).

Almost surely, 242688758 is an apocalyptic number.

42688758 is an abundant number, since it is smaller than the sum of its proper divisors (54885642).

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

42688758 is a wasteful number, since it uses less digits than its factorization.

42688758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016411.

The product of its digits is 860160, while the sum is 48.

The square root of 42688758 is about 6533.6634440412. The cubic root of 42688758 is about 349.4924834804.

The spelling of 42688758 in words is "forty-two million, six hundred eighty-eight thousand, seven hundred fifty-eight".

Divisors: 1 2 3 6 7 14 21 42 1016399 2032798 3049197 6098394 7114793 14229586 21344379 42688758