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83097997 = 710311699
BaseRepresentation
bin1001111001111…
…11100110001101
312210100211000121
410330333212031
5132233113442
612125024541
72026215133
oct474774615
9183324017
1083097997
11429a7834
12239b5151
13142a6518
14b071753
157466967
hex4f3f98d

83097997 has 4 divisors (see below), whose sum is σ = 83116800. Its totient is φ = 83079196.

The previous prime is 83097991. The next prime is 83098007. The reversal of 83097997 is 79979038.

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 83097997 - 223 = 74709389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83097991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254 + ... + 12952.

It is an arithmetic number, because the mean of its divisors is an integer number (20779200).

Almost surely, 283097997 is an apocalyptic number.

It is an amenable number.

83097997 is a deficient number, since it is larger than the sum of its proper divisors (18803).

83097997 is a wasteful number, since it uses less digits than its factorization.

83097997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 83097997 is about 9115.8102766567. The cubic root of 83097997 is about 436.3786742595.

The spelling of 83097997 in words is "eighty-three million, ninety-seven thousand, nine hundred ninety-seven".

Divisors: 1 7103 11699 83097997