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82008201271 = 4110921186969
BaseRepresentation
bin100110001100000010…
…0011101100000110111
321211200021220021020211
41030120010131200313
52320423044420041
6101401332210251
75632145131543
oct1143004354067
9254607807224
1082008201271
1131863545457
1213a88469987
13796c1c10a9
143d7d76aa23
1521ee951481
hex131811d837

82008201271 has 16 divisors (see below), whose sum is σ = 85181896800. Its totient is φ = 78897369600.

The previous prime is 82008201269. The next prime is 82008201277. The reversal of 82008201271 is 17210280028.

It is a cyclic number.

It is not a de Polignac number, because 82008201271 - 21 = 82008201269 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 (82008201277) 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, 899475 + ... + 986443.

It is an arithmetic number, because the mean of its divisors is an integer number (5323868550).

Almost surely, 282008201271 is an apocalyptic number.

82008201271 is a deficient number, since it is larger than the sum of its proper divisors (3173695529).

82008201271 is a wasteful number, since it uses less digits than its factorization.

82008201271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87330.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 82008201271 its reverse (17210280028), we get a palindrome (99218481299).

The spelling of 82008201271 in words is "eighty-two billion, eight million, two hundred one thousand, two hundred seventy-one".

Divisors: 1 41 109 211 4469 8651 22999 86969 942959 3565729 9479621 18350459 388664461 752368819 2000200031 82008201271