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85012050897 = 3260937155009
BaseRepresentation
bin100111100101100011…
…1001111001111010001
322010102122011122021200
41033023013033033101
52343101041112042
6103015355141413
76066451336614
oct1171307171721
9263378148250
1085012050897
11330650a5104
1214586444869
13802a6228c7
14418669617b
152328505c4c
hex13cb1cf3d1

85012050897 has 12 divisors (see below), whose sum is σ = 122797991940. Its totient is φ = 56673404928.

The previous prime is 85012050869. The next prime is 85012050923. The reversal of 85012050897 is 79805021058.

It is a happy number.

85012050897 is a `hidden beast` number, since 8 + 50 + 1 + 2 + 0 + 508 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35951572881 + 49060478016 = 189609^2 + 221496^2 .

It is not a de Polignac number, because 85012050897 - 27 = 85012050769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85012050817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470929 + ... + 625937.

It is an arithmetic number, because the mean of its divisors is an integer number (10233165995).

Almost surely, 285012050897 is an apocalyptic number.

It is an amenable number.

85012050897 is a deficient number, since it is larger than the sum of its proper divisors (37785941043).

85012050897 is a wasteful number, since it uses less digits than its factorization.

85012050897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215952 (or 215949 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 85012050897 in words is "eighty-five billion, twelve million, fifty thousand, eight hundred ninety-seven".

Divisors: 1 3 9 60937 155009 182811 465027 548433 1395081 9445783433 28337350299 85012050897