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42839269 = 11171072141
BaseRepresentation
bin1010001101101…
…0110011100101
32222121110102121
42203122303211
541431324034
64130105541
71030061554
oct243326345
988543377
1042839269
11221aa860
121241b2b1
138b4bca5
145991d9b
153b631b4
hex28dace5

42839269 has 16 divisors (see below), whose sum is σ = 49968576. Its totient is φ = 36294400.

The previous prime is 42839267. The next prime is 42839273. The reversal of 42839269 is 96293824.

It is not a de Polignac number, because 42839269 - 21 = 42839267 is a prime.

It is a super-2 number, since 2×428392692 = 3670405936908722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42839267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18939 + ... + 21079.

It is an arithmetic number, because the mean of its divisors is an integer number (3123036).

Almost surely, 242839269 is an apocalyptic number.

It is an amenable number.

42839269 is a deficient number, since it is larger than the sum of its proper divisors (7129307).

42839269 is a wasteful number, since it uses less digits than its factorization.

42839269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276.

The product of its digits is 186624, while the sum is 43.

The square root of 42839269 is about 6545.1714263264. The cubic root of 42839269 is about 349.9027457677.

The spelling of 42839269 in words is "forty-two million, eight hundred thirty-nine thousand, two hundred sixty-nine".

Divisors: 1 11 17 107 187 1177 1819 2141 20009 23551 36397 229087 400367 2519957 3894479 42839269