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42839260 = 2254189587
BaseRepresentation
bin1010001101101…
…0110011011100
32222121110102021
42203122303130
541431324020
64130105524
71030061542
oct243326334
988543367
1042839260
11221aa852
121241b2a4
138b4bc99
145991d92
153b631aa
hex28dacdc

42839260 has 48 divisors (see below), whose sum is σ = 93350880. Its totient is φ = 16501760.

The previous prime is 42839257. The next prime is 42839267. The reversal of 42839260 is 6293824.

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, 72687 + ... + 73273.

It is an arithmetic number, because the mean of its divisors is an integer number (1944810).

Almost surely, 242839260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42839260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46675440).

42839260 is an abundant number, since it is smaller than the sum of its proper divisors (50511620).

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

42839260 is a wasteful number, since it uses less digits than its factorization.

42839260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 42839260 is about 6545.1707387967. The cubic root of 42839260 is about 349.9027212642.

The spelling of 42839260 in words is "forty-two million, eight hundred thirty-nine thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 89 164 178 205 356 410 445 587 820 890 1174 1780 2348 2935 3649 5870 7298 11740 14596 18245 24067 36490 48134 52243 72980 96268 104486 120335 208972 240670 261215 481340 522430 1044860 2141963 4283926 8567852 10709815 21419630 42839260