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85385461580 = 22516741255019
BaseRepresentation
bin100111110000101011…
…1101011111101001100
322011101122210212102222
41033201113223331030
52344332134232310
6103120414434512
76111634306526
oct1174127537514
9264348725388
1085385461580
113323695a081
121466b502a38
138089ab4783
1441c00d8a16
15234b1b6055
hex13e15ebf4c

85385461580 has 24 divisors (see below), whose sum is σ = 179320883280. Its totient is φ = 34152010560.

The previous prime is 85385461573. The next prime is 85385461589. The reversal of 85385461580 is 8516458358.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85385461589) 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, 207311 + ... + 462329.

It is an arithmetic number, because the mean of its divisors is an integer number (7471703470).

Almost surely, 285385461580 is an apocalyptic number.

It is an amenable number.

85385461580 is an abundant number, since it is smaller than the sum of its proper divisors (93935421700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85385461580 is a wasteful number, since it uses less digits than its factorization.

85385461580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271769 (or 271767 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 85385461580 in words is "eighty-five billion, three hundred eighty-five million, four hundred sixty-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 16741 33482 66964 83705 167410 255019 334820 510038 1020076 1275095 2550190 5100380 4269273079 8538546158 17077092316 21346365395 42692730790 85385461580