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83668297 = 285129347
BaseRepresentation
bin1001111110010…
…10110101001001
312211102210022211
410333022311021
5132404341142
612145145121
72034111616
oct477126511
9184383284
1083668297
1143257259
122402b1a1
1314445c8b
14b17d50d
15752a917
hex4fcad49

83668297 has 4 divisors (see below), whose sum is σ = 83700496. Its totient is φ = 83636100.

The previous prime is 83668289. The next prime is 83668337. The reversal of 83668297 is 79286638.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83668297 - 23 = 83668289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83668297.

It is not an unprimeable number, because it can be changed into a prime (83668217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11823 + ... + 17524.

It is an arithmetic number, because the mean of its divisors is an integer number (20925124).

Almost surely, 283668297 is an apocalyptic number.

It is an amenable number.

83668297 is a deficient number, since it is larger than the sum of its proper divisors (32199).

83668297 is a wasteful number, since it uses less digits than its factorization.

83668297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32198.

The product of its digits is 870912, while the sum is 49.

The square root of 83668297 is about 9147.0376078816. The cubic root of 83668297 is about 437.3746854153.

The spelling of 83668297 in words is "eighty-three million, six hundred sixty-eight thousand, two hundred ninety-seven".

Divisors: 1 2851 29347 83668297