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82371001 = 174845353
BaseRepresentation
bin1001110100011…
…10000110111001
312201222212202211
410322032012321
5132041333001
612101255121
72020066456
oct472160671
9181885684
1082371001
1142550609
12237044a1
13140b064b
14ad2282d
157371351
hex4e8e1b9

82371001 has 4 divisors (see below), whose sum is σ = 87216372. Its totient is φ = 77525632.

The previous prime is 82370993. The next prime is 82371017. The reversal of 82371001 is 10017328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63186601 + 19184400 = 7949^2 + 4380^2 .

It is a cyclic number.

It is not a de Polignac number, because 82371001 - 23 = 82370993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82371301) 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, 2422660 + ... + 2422693.

It is an arithmetic number, because the mean of its divisors is an integer number (21804093).

Almost surely, 282371001 is an apocalyptic number.

It is an amenable number.

82371001 is a deficient number, since it is larger than the sum of its proper divisors (4845371).

82371001 is a wasteful number, since it uses less digits than its factorization.

82371001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845370.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 82371001 is about 9075.8471229963. The cubic root of 82371001 is about 435.1023690021.

Adding to 82371001 its reverse (10017328), we get a palindrome (92388329).

It can be divided in two parts, 823 and 71001, that added together give a square (71824 = 2682).

The spelling of 82371001 in words is "eighty-two million, three hundred seventy-one thousand, one".

Divisors: 1 17 4845353 82371001