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83069517 = 327689839
BaseRepresentation
bin1001111001110…
…00101001001101
312210022100221210
410330320221031
5132231211032
612124245033
72026036116
oct474705115
9183270853
1083069517
11429883a3
12239a0779
131429657b
14b06520d
15745d2cc
hex4f38a4d

83069517 has 4 divisors (see below), whose sum is σ = 110759360. Its totient is φ = 55379676.

The previous prime is 83069509. The next prime is 83069549. The reversal of 83069517 is 71596038.

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 not a de Polignac number, because 83069517 - 23 = 83069509 is a prime.

It is a super-2 number, since 2×830695172 = 13801089309226578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83069317) 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, 13844917 + ... + 13844922.

It is an arithmetic number, because the mean of its divisors is an integer number (27689840).

Almost surely, 283069517 is an apocalyptic number.

It is an amenable number.

83069517 is a deficient number, since it is larger than the sum of its proper divisors (27689843).

83069517 is a wasteful number, since it uses less digits than its factorization.

83069517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27689842.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 83069517 is about 9114.2480216417. The cubic root of 83069517 is about 436.3288155177.

The spelling of 83069517 in words is "eighty-three million, sixty-nine thousand, five hundred seventeen".

Divisors: 1 3 27689839 83069517