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283146340 = 22514157317
BaseRepresentation
bin10000111000000…
…111100001100100
3201201210022202111
4100320013201210
51034441140330
644032450404
710005463351
oct2070074144
9651708674
10283146340
11135913044
127a9a9a04
1346879819
1429867628
1519cd032a
hex10e07864

283146340 has 12 divisors (see below), whose sum is σ = 594607356. Its totient is φ = 113258528.

The previous prime is 283146301. The next prime is 283146397. The reversal of 283146340 is 43641382.

It can be written as a sum of positive squares in 2 ways, for example, as 62980096 + 220166244 = 7936^2 + 14838^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7078639 + ... + 7078678.

It is an arithmetic number, because the mean of its divisors is an integer number (49550613).

Almost surely, 2283146340 is an apocalyptic number.

283146340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283146340 is an abundant number, since it is smaller than the sum of its proper divisors (311461016).

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

283146340 is a wasteful number, since it uses less digits than its factorization.

283146340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157326 (or 14157324 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 283146340 is about 16826.9527841496. The cubic root of 283146340 is about 656.6545896353.

The spelling of 283146340 in words is "two hundred eighty-three million, one hundred forty-six thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 14157317 28314634 56629268 70786585 141573170 283146340