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66322442 = 2181118311
BaseRepresentation
bin1111110100000…
…0000000001010
311121210112021202
43331000000022
5113434304232
610325304202
71433505614
oct375000012
9147715252
1066322442
113448a03a
121a265062
1310981964
148b45db4
155c51162
hex3f4000a

66322442 has 8 divisors (see below), whose sum is σ = 99544032. Its totient is φ = 33141100.

The previous prime is 66322441. The next prime is 66322453. The reversal of 66322442 is 24422366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66322441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5534 + ... + 12777.

It is an arithmetic number, because the mean of its divisors is an integer number (12443004).

Almost surely, 266322442 is an apocalyptic number.

66322442 is a deficient number, since it is larger than the sum of its proper divisors (33221590).

66322442 is a wasteful number, since it uses less digits than its factorization.

66322442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20124.

The product of its digits is 13824, while the sum is 29.

The square root of 66322442 is about 8143.8591589000. The cubic root of 66322442 is about 404.7810471228.

The spelling of 66322442 in words is "sixty-six million, three hundred twenty-two thousand, four hundred forty-two".

Divisors: 1 2 1811 3622 18311 36622 33161221 66322442