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85228930800 = 2432521321973101
BaseRepresentation
bin100111101100000001…
…0100100011011110000
322010222202021021120200
41033120002210123300
52344022101241200
6103053103435200
76105023646546
oct1173002443360
9263882237520
1085228930800
11331665671a2
1214626bb5b00
13806353a100
1441a73cdd96
15233c596800
hex13d80a46f0

85228930800 has 1080 divisors, whose sum is σ = 345127620240. Its totient is φ = 19408896000.

The previous prime is 85228930783. The next prime is 85228930849. The reversal of 85228930800 is 803982258.

It is a super-2 number, since 2×852289308002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 843850750 + ... + 843850850.

Almost surely, 285228930800 is an apocalyptic number.

85228930800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85228930800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172563810120).

85228930800 is an abundant number, since it is smaller than the sum of its proper divisors (259898689440).

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

85228930800 is a wasteful number, since it uses less digits than its factorization.

85228930800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 85228930800 in words is "eighty-five billion, two hundred twenty-eight million, nine hundred thirty thousand, eight hundred".