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85283380052 = 22131640065001
BaseRepresentation
bin100111101101101001…
…0010001101101010100
322011010112201120220122
41033123102101231110
52344130021130202
6103102330451112
76106254524663
oct1173322215524
9264115646818
1085283380052
1133194276782
1214641293a98
1380718c26c0
1441b0724dda
15234224e9a2
hex13db491b54

85283380052 has 12 divisors (see below), whose sum is σ = 160726370196. Its totient is φ = 39361560000.

The previous prime is 85283380051. The next prime is 85283380067. The reversal of 85283380052 is 25008338258.

It can be written as a sum of positive squares in 2 ways, for example, as 8229392656 + 77053987396 = 90716^2 + 277586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85283379985 and 85283380012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85283380051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820032449 + ... + 820032552.

It is an arithmetic number, because the mean of its divisors is an integer number (13393864183).

Almost surely, 285283380052 is an apocalyptic number.

It is an amenable number.

85283380052 is a deficient number, since it is larger than the sum of its proper divisors (75442990144).

85283380052 is a wasteful number, since it uses less digits than its factorization.

85283380052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640065018 (or 1640065016 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 85283380052 in words is "eighty-five billion, two hundred eighty-three million, three hundred eighty thousand, fifty-two".

Divisors: 1 2 4 13 26 52 1640065001 3280130002 6560260004 21320845013 42641690026 85283380052