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82019181283 = 1318517340723
BaseRepresentation
bin100110001100010111…
…0010110001011100011
321211201001120002222221
41030120232112023203
52320433402300113
6101402403411511
75632340352334
oct1143056261343
9254631502887
1082019181283
1131869764946
1213a90083b97
137971566a40
143d80dc828b
1522008be98d
hex1318b962e3

82019181283 has 8 divisors (see below), whose sum is σ = 88333378448. Its totient is φ = 75705702624.

The previous prime is 82019181263. The next prime is 82019181287. The reversal of 82019181283 is 38218191028.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82019181283 - 233 = 73429246691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82019181287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70360 + ... + 411082.

It is an arithmetic number, because the mean of its divisors is an integer number (11041672306).

Almost surely, 282019181283 is an apocalyptic number.

82019181283 is a deficient number, since it is larger than the sum of its proper divisors (6314197165).

82019181283 is a wasteful number, since it uses less digits than its factorization.

82019181283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359253.

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 82019181283 in words is "eighty-two billion, nineteen million, one hundred eighty-one thousand, two hundred eighty-three".

Divisors: 1 13 18517 240721 340723 4429399 6309167791 82019181283