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193283642 = 21715736209
BaseRepresentation
bin10111000010101…
…00011000111010
3111110200211022102
423201110120322
5343440034032
631102423402
74534612106
oct1341243072
9443624272
10193283642
119a115952
1254891b62
1331075226
141b954906
1511e7e362
hexb85463a

193283642 has 16 divisors (see below), whose sum is σ = 308943720. Its totient is φ = 90375168.

The previous prime is 193283627. The next prime is 193283669. The reversal of 193283642 is 246382391.

It can be written as a sum of positive squares in 4 ways, for example, as 143736121 + 49547521 = 11989^2 + 7039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 193283596 and 193283605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12767 + ... + 23442.

Almost surely, 2193283642 is an apocalyptic number.

193283642 is a deficient number, since it is larger than the sum of its proper divisors (115660078).

193283642 is a wasteful number, since it uses less digits than its factorization.

193283642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36385.

The product of its digits is 62208, while the sum is 38.

The square root of 193283642 is about 13902.6487404379. The cubic root of 193283642 is about 578.1826209021.

The spelling of 193283642 in words is "one hundred ninety-three million, two hundred eighty-three thousand, six hundred forty-two".

Divisors: 1 2 17 34 157 314 2669 5338 36209 72418 615553 1231106 5684813 11369626 96641821 193283642