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83142308 = 22171222681
BaseRepresentation
bin1001111010010…
…10011010100100
312210110001210202
410331022122210
5132241023213
612130010032
72026461254
oct475123244
9183401722
1083142308
1142a28057
1223a16918
13142c0742
14b083964
157474b58
hex4f4a6a4

83142308 has 12 divisors (see below), whose sum is σ = 154057932. Its totient is φ = 39125760.

The previous prime is 83142259. The next prime is 83142313. The reversal of 83142308 is 80324138.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70023424 + 13118884 = 8368^2 + 3622^2 .

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 3 ways as a sum of consecutive naturals, for example, 611273 + ... + 611408.

It is an arithmetic number, because the mean of its divisors is an integer number (12838161).

Almost surely, 283142308 is an apocalyptic number.

It is an amenable number.

83142308 is a deficient number, since it is larger than the sum of its proper divisors (70915624).

83142308 is a wasteful number, since it uses less digits than its factorization.

83142308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222702 (or 1222700 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83142308 is about 9118.2404004281. The cubic root of 83142308 is about 436.4562250236.

The spelling of 83142308 in words is "eighty-three million, one hundred forty-two thousand, three hundred eight".