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82793197 = 463178819
BaseRepresentation
bin1001110111101…
…01001011101101
312202210022220201
410323311023231
5132143340242
612114313501
72023505404
oct473651355
9182708821
1082793197
1142809833
1223888891
13141ca876
14add263b
1574064b7
hex4ef52ed

82793197 has 4 divisors (see below), whose sum is σ = 82972480. Its totient is φ = 82613916.

The previous prime is 82793177. The next prime is 82793257. The reversal of 82793197 is 79139728.

It is a happy number.

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 82793197 - 219 = 82268909 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 (82793147) 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, 88947 + ... + 89872.

It is an arithmetic number, because the mean of its divisors is an integer number (20743120).

Almost surely, 282793197 is an apocalyptic number.

It is an amenable number.

82793197 is a deficient number, since it is larger than the sum of its proper divisors (179283).

82793197 is a wasteful number, since it uses less digits than its factorization.

82793197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179282.

The product of its digits is 190512, while the sum is 46.

The square root of 82793197 is about 9099.0767114032. The cubic root of 82793197 is about 435.8444809785.

It can be divided in two parts, 8279 and 3197, that added together give a triangular number (11476 = T151).

The spelling of 82793197 in words is "eighty-two million, seven hundred ninety-three thousand, one hundred ninety-seven".

Divisors: 1 463 178819 82793197