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145228682 = 273994717
BaseRepresentation
bin10001010100000…
…00001110001010
3101010021101022002
420222000032022
5244134304212
622224431002
73412265144
oct1052001612
9333241262
10145228682
1174a83505
1240778462
132411b241
1415405c94
15cb3aac2
hex8a8038a

145228682 has 8 divisors (see below), whose sum is σ = 220827396. Its totient is φ = 71619552.

The previous prime is 145228649. The next prime is 145228697. The reversal of 145228682 is 286822541.

It can be written as a sum of positive squares in 2 ways, for example, as 135932281 + 9296401 = 11659^2 + 3049^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497213 + ... + 497504.

Almost surely, 2145228682 is an apocalyptic number.

145228682 is a deficient number, since it is larger than the sum of its proper divisors (75598714).

145228682 is an equidigital number, since it uses as much as digits as its factorization.

145228682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994792.

The product of its digits is 61440, while the sum is 38.

The square root of 145228682 is about 12051.0863410732. The cubic root of 145228682 is about 525.6348263185.

The spelling of 145228682 in words is "one hundred forty-five million, two hundred twenty-eight thousand, six hundred eighty-two".

Divisors: 1 2 73 146 994717 1989434 72614341 145228682