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228502512 = 24337194197
BaseRepresentation
bin11011001111010…
…10101111110000
3120220222010112000
431213222233300
5431444040022
634401334000
75443145040
oct1547525760
9526863460
10228502512
11107a90357
1264637300
13384567b4
14224c1720
15150d96ac
hexd9eabf0

228502512 has 320 divisors, whose sum is σ = 816614400. Its totient is φ = 59719680.

The previous prime is 228502499. The next prime is 228502529. The reversal of 228502512 is 215205822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2355648 + ... + 2355744.

It is an arithmetic number, because the mean of its divisors is an integer number (2551920).

Almost surely, 2228502512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228502512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408307200).

228502512 is an abundant number, since it is smaller than the sum of its proper divisors (588111888).

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

228502512 is a wasteful number, since it uses less digits than its factorization.

228502512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 228502512 is about 15116.2995471775. The cubic root of 228502512 is about 611.3599613983.

The spelling of 228502512 in words is "two hundred twenty-eight million, five hundred two thousand, five hundred twelve".