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42158580 = 22356611063
BaseRepresentation
bin1010000011010…
…0100111110100
32221022212200220
42200310213310
541243033310
64103334340
71021225212
oct240644764
987285626
1042158580
1121885402
12121513b0
138971209
145855cb2
153a7b670
hex28349f4

42158580 has 48 divisors (see below), whose sum is σ = 118333824. Its totient is φ = 11214720.

The previous prime is 42158579. The next prime is 42158581. The reversal of 42158580 is 8585124.

It is an interprime number because it is at equal distance from previous prime (42158579) and next prime (42158581).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42158581) 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, 39129 + ... + 40191.

It is an arithmetic number, because the mean of its divisors is an integer number (2465288).

Almost surely, 242158580 is an apocalyptic number.

It is an amenable number.

42158580 is an abundant number, since it is smaller than the sum of its proper divisors (76175244).

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

42158580 is a wasteful number, since it uses less digits than its factorization.

42158580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 42158580 is about 6492.9638840825. The cubic root of 42158580 is about 348.0395978194.

The spelling of 42158580 in words is "forty-two million, one hundred fifty-eight thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 661 1063 1322 1983 2126 2644 3189 3305 3966 4252 5315 6378 6610 7932 9915 10630 12756 13220 15945 19830 21260 31890 39660 63780 702643 1405286 2107929 2810572 3513215 4215858 7026430 8431716 10539645 14052860 21079290 42158580