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42029860 = 2254394787
BaseRepresentation
bin1010000001010…
…1001100100100
32221002100010111
42200111030210
541224423420
64100502404
71020151015
oct240251444
987070114
1042029860
11217a7724
12120aaa04
138927752
14582100c
153a5345a
hex2815324

42029860 has 24 divisors (see below), whose sum is σ = 88482240. Its totient is φ = 16770144.

The previous prime is 42029821. The next prime is 42029863. The reversal of 42029860 is 6892024.

It is not an unprimeable number, because it can be changed into a prime (42029863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6387 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (3686760).

Almost surely, 242029860 is an apocalyptic number.

It is an amenable number.

42029860 is an abundant number, since it is smaller than the sum of its proper divisors (46452380).

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

42029860 is a wasteful number, since it uses less digits than its factorization.

42029860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235 (or 5233 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42029860 is about 6483.0440381043. The cubic root of 42029860 is about 347.6850212885.

The spelling of 42029860 in words is "forty-two million, twenty-nine thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 439 878 1756 2195 4390 4787 8780 9574 19148 23935 47870 95740 2101493 4202986 8405972 10507465 21014930 42029860