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42860023 = 371995821
BaseRepresentation
bin1010001101111…
…1110111110111
32222122111220021
42203133313313
541433010043
64130350011
71030206223
oct243376767
988574807
1042860023
1122214408
121242b307
138b5857b
145999783
153b693ed
hex28dfdf7

42860023 has 8 divisors (see below), whose sum is σ = 44247200. Its totient is φ = 41484960.

The previous prime is 42860021. The next prime is 42860053. The reversal of 42860023 is 32006824.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42860023 - 21 = 42860021 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 42860023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42860021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4453 + ... + 10273.

It is an arithmetic number, because the mean of its divisors is an integer number (5530900).

Almost surely, 242860023 is an apocalyptic number.

42860023 is a deficient number, since it is larger than the sum of its proper divisors (1387177).

42860023 is a wasteful number, since it uses less digits than its factorization.

42860023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42860023 is about 6546.7566779284. The cubic root of 42860023 is about 349.9592415122.

Adding to 42860023 its reverse (32006824), we get a palindrome (74866847).

The spelling of 42860023 in words is "forty-two million, eight hundred sixty thousand, twenty-three".

Divisors: 1 37 199 5821 7363 215377 1158379 42860023