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42246280 = 23510110457
BaseRepresentation
bin1010000100101…
…0000010001000
32221111100000001
42201022002020
541303340110
64105252344
71022041666
oct241120210
987440001
1042246280
112193528a
12121940b4
1389a20cb
145879c36
153a9763a
hex284a088

42246280 has 32 divisors (see below), whose sum is σ = 96004440. Its totient is φ = 16729600.

The previous prime is 42246271. The next prime is 42246299. The reversal of 42246280 is 8264224.

It can be written as a sum of positive squares in 4 ways, for example, as 42068196 + 178084 = 6486^2 + 422^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 9268.

Almost surely, 242246280 is an apocalyptic number.

42246280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42246280 is an abundant number, since it is smaller than the sum of its proper divisors (53758160).

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

42246280 is a wasteful number, since it uses less digits than its factorization.

42246280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10569 (or 10565 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 42246280 is about 6499.7138398548. The cubic root of 42246280 is about 348.2807660627.

The spelling of 42246280 in words is "forty-two million, two hundred forty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 4040 10457 20914 41828 52285 83656 104570 209140 418280 1056157 2112314 4224628 5280785 8449256 10561570 21123140 42246280