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229913280 = 2632597823
BaseRepresentation
bin11011011010000…
…11001011000000
3121000121210201200
431231003023000
5432324211110
634451501200
75461142052
oct1555031300
9530553650
10229913280
11108864283
1264bb7800
133882b97c
142276b8d2
15152b76c0
hexdb432c0

229913280 has 168 divisors, whose sum is σ = 799929312. Its totient is φ = 60604416.

The previous prime is 229913273. The next prime is 229913297. The reversal of 229913280 is 82319922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278949 + ... + 279771.

It is an arithmetic number, because the mean of its divisors is an integer number (4761484).

Almost surely, 2229913280 is an apocalyptic number.

229913280 is a gapful number since it is divisible by the number (20) 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 229913280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399964656).

229913280 is an abundant number, since it is smaller than the sum of its proper divisors (570016032).

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

229913280 is a wasteful number, since it uses less digits than its factorization.

229913280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 229913280 is about 15162.8915448209. The cubic root of 229913280 is about 612.6155539306.

The spelling of 229913280 in words is "two hundred twenty-nine million, nine hundred thirteen thousand, two hundred eighty".