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82785141275 = 52149213110429
BaseRepresentation
bin100110100011001100…
…0010000001000011011
321220200102211220120112
41031012120100020123
52324020444010100
6102010404514535
75660331043004
oct1150630201033
9256612756515
1082785141275
1132122065a31
12140646aba4b
137a6415bac5
144014a121ab
152247c70b35
hex134661021b

82785141275 has 24 divisors (see below), whose sum is σ = 103400934000. Its totient is φ = 65746454400.

The previous prime is 82785141253. The next prime is 82785141289. The reversal of 82785141275 is 57214158728.

It is a happy number.

It is not a de Polignac number, because 82785141275 - 222 = 82780946971 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7932761 + ... + 7943189.

It is an arithmetic number, because the mean of its divisors is an integer number (4308372250).

Almost surely, 282785141275 is an apocalyptic number.

82785141275 is a deficient number, since it is larger than the sum of its proper divisors (20615792725).

82785141275 is a wasteful number, since it uses less digits than its factorization.

82785141275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719 (or 12714 counting only the distinct ones).

The product of its digits is 1254400, while the sum is 50.

The spelling of 82785141275 in words is "eighty-two billion, seven hundred eighty-five million, one hundred forty-one thousand, two hundred seventy-five".

Divisors: 1 5 25 149 745 2131 3725 10429 10655 52145 53275 260725 317519 1553921 1587595 7769605 7937975 22224199 38848025 111120995 555604975 3311405651 16557028255 82785141275