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82396087 = 181455227
BaseRepresentation
bin1001110100101…
…00001110110111
312202001011011221
410322110032313
5132043133322
612102011211
72020232554
oct472241667
9182034157
1082396087
1142568444
1223716b07
13140bbba7
14ad2ba2b
1573789c7
hex4e943b7

82396087 has 4 divisors (see below), whose sum is σ = 82851496. Its totient is φ = 81940680.

The previous prime is 82396081. The next prime is 82396117. The reversal of 82396087 is 78069328.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82396087 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 (82396081) 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, 227433 + ... + 227794.

It is an arithmetic number, because the mean of its divisors is an integer number (20712874).

Almost surely, 282396087 is an apocalyptic number.

82396087 is a deficient number, since it is larger than the sum of its proper divisors (455409).

82396087 is a wasteful number, since it uses less digits than its factorization.

82396087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455408.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 82396087 is about 9077.2290375422. The cubic root of 82396087 is about 435.1465345055.

The spelling of 82396087 in words is "eighty-two million, three hundred ninety-six thousand, eighty-seven".

Divisors: 1 181 455227 82396087