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82651193 = 144757119
BaseRepresentation
bin1001110110100…
…10100000111001
312202112010010022
410323102200321
5132124314233
612111300225
72022344402
oct473224071
9182463108
1082651193
1142722079
122381a675
131417b041
14ad969a9
1573c9398
hex4ed2839

82651193 has 4 divisors (see below), whose sum is σ = 82709760. Its totient is φ = 82592628.

The previous prime is 82651147. The next prime is 82651199. The reversal of 82651193 is 39115628.

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 82651193 - 220 = 81602617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82651199) by changing a digit.

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, 27113 + ... + 30006.

It is an arithmetic number, because the mean of its divisors is an integer number (20677440).

Almost surely, 282651193 is an apocalyptic number.

It is an amenable number.

82651193 is a deficient number, since it is larger than the sum of its proper divisors (58567).

82651193 is a wasteful number, since it uses less digits than its factorization.

82651193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58566.

The product of its digits is 12960, while the sum is 35.

The square root of 82651193 is about 9091.2701532844. The cubic root of 82651193 is about 435.5951566359.

The spelling of 82651193 in words is "eighty-two million, six hundred fifty-one thousand, one hundred ninety-three".

Divisors: 1 1447 57119 82651193