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82418087 = 298397353
BaseRepresentation
bin1001110100110…
…01100110100111
312202002021100202
410322121212213
5132044334322
612102301115
72020353653
oct472314647
9182067322
1082418087
1142582a24
122372779b
13140c8bcb
14ad35a63
157380292
hex4e999a7

82418087 has 16 divisors (see below), whose sum is σ = 87423840. Its totient is φ = 77586432.

The previous prime is 82418081. The next prime is 82418099. The reversal of 82418087 is 78081428.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82418087 - 24 = 82418071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82418087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82418081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233303 + ... + 233655.

It is an arithmetic number, because the mean of its divisors is an integer number (5463990).

Almost surely, 282418087 is an apocalyptic number.

82418087 is a deficient number, since it is larger than the sum of its proper divisors (5005753).

82418087 is a wasteful number, since it uses less digits than its factorization.

82418087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 82418087 is about 9078.4407802221. The cubic root of 82418087 is about 435.1852595316.

The spelling of 82418087 in words is "eighty-two million, four hundred eighteen thousand, eighty-seven".

Divisors: 1 29 83 97 353 2407 2813 8051 10237 29299 34241 233479 849671 992989 2842003 82418087