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83029385 = 516605877
BaseRepresentation
bin1001111001011…
…10110110001001
312210020022220102
410330232312021
5132223420020
612123335145
72025511115
oct474566611
9183208812
1083029385
114296022a
12239814b5
131428121a
14b054745
157451475
hex4f2ed89

83029385 has 4 divisors (see below), whose sum is σ = 99635268. Its totient is φ = 66423504.

The previous prime is 83029361. The next prime is 83029403. The reversal of 83029385 is 58392038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58392038 = 229196019.

It can be written as a sum of positive squares in 2 ways, for example, as 29637136 + 53392249 = 5444^2 + 7307^2 .

It is a cyclic number.

It is not a de Polignac number, because 83029385 - 214 = 83013001 is a prime.

It is a Duffinian number.

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, 8302934 + ... + 8302943.

It is an arithmetic number, because the mean of its divisors is an integer number (24908817).

Almost surely, 283029385 is an apocalyptic number.

It is an amenable number.

83029385 is a deficient number, since it is larger than the sum of its proper divisors (16605883).

83029385 is a wasteful number, since it uses less digits than its factorization.

83029385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16605882.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 83029385 is about 9112.0461478199. The cubic root of 83029385 is about 436.2585387611.

The spelling of 83029385 in words is "eighty-three million, twenty-nine thousand, three hundred eighty-five".

Divisors: 1 5 16605877 83029385