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42038755 = 511764341
BaseRepresentation
bin1010000001011…
…1010111100011
32221002210022221
42200113113203
541230220010
64101011511
71020215653
oct240272743
987083287
1042038755
1121803380
12120b3b97
13892b805
145824363
153a55dda
hex28175e3

42038755 has 8 divisors (see below), whose sum is σ = 55032624. Its totient is φ = 30573600.

The previous prime is 42038741. The next prime is 42038767. The reversal of 42038755 is 55783024.

It is a happy number.

42038755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42038755 - 25 = 42038723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42038755.

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 7 ways as a sum of consecutive naturals, for example, 382116 + ... + 382225.

It is an arithmetic number, because the mean of its divisors is an integer number (6879078).

Almost surely, 242038755 is an apocalyptic number.

42038755 is a deficient number, since it is larger than the sum of its proper divisors (12993869).

42038755 is a wasteful number, since it uses less digits than its factorization.

42038755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764357.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 42038755 is about 6483.7300221400. The cubic root of 42038755 is about 347.7095470274.

The spelling of 42038755 in words is "forty-two million, thirty-eight thousand, seven hundred fifty-five".

Divisors: 1 5 11 55 764341 3821705 8407751 42038755