Search a number
-
+
8228136960 = 2113251937127
BaseRepresentation
bin1111010100110111…
…10110100000000000
3210020102200122222100
413222123312200000
5113322400340320
63440245310400
7410621003331
oct75233664000
923212618870
108228136960
11354262909a
121717705400
13a1189c3c4
14580ad2288
15332561790
hex1ea6f6800

8228136960 has 576 divisors, whose sum is σ = 31072204800. Its totient is φ = 2006581248.

The previous prime is 8228136937. The next prime is 8228136967. The reversal of 8228136960 is 696318228.

8228136960 is a `hidden beast` number, since 8 + 2 + 281 + 369 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is not an unprimeable number, because it can be changed into a prime (8228136967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64788417 + ... + 64788543.

It is an arithmetic number, because the mean of its divisors is an integer number (53944800).

Almost surely, 28228136960 is an apocalyptic number.

8228136960 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 8228136960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15536102400).

8228136960 is an abundant number, since it is smaller than the sum of its proper divisors (22844067840).

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

8228136960 is a wasteful number, since it uses less digits than its factorization.

8228136960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 8228136960 is about 90709.0787077016. The cubic root of 8228136960 is about 2018.8335061675.

The spelling of 8228136960 in words is "eight billion, two hundred twenty-eight million, one hundred thirty-six thousand, nine hundred sixty".