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85284532141 = 143359514677
BaseRepresentation
bin100111101101101011…
…0101010111110101101
322011010121220010021121
41033123112222332231
52344130320012031
6103102411300541
76106300363564
oct1173326527655
9264117803247
1085284532141
1133194993316
121464174a751
138071c06c03
1441b0944bdb
1523423cb011
hex13db5aafad

85284532141 has 4 divisors (see below), whose sum is σ = 85344048252. Its totient is φ = 85225016032.

The previous prime is 85284532133. The next prime is 85284532169. The reversal of 85284532141 is 14123548258.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29196556900 + 56087975241 = 170870^2 + 236829^2 .

It is a cyclic number.

It is not a de Polignac number, because 85284532141 - 23 = 85284532133 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 (85284562141) 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, 29755906 + ... + 29758771.

It is an arithmetic number, because the mean of its divisors is an integer number (21336012063).

Almost surely, 285284532141 is an apocalyptic number.

It is an amenable number.

85284532141 is a deficient number, since it is larger than the sum of its proper divisors (59516111).

85284532141 is a wasteful number, since it uses less digits than its factorization.

85284532141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59516110.

The product of its digits is 307200, while the sum is 43.

The spelling of 85284532141 in words is "eighty-five billion, two hundred eighty-four million, five hundred thirty-two thousand, one hundred forty-one".

Divisors: 1 1433 59514677 85284532141