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228139207603200 = 2103452110020837
BaseRepresentation
bin110011110111110111001100…
…011011011011010000000000
31002220202220011122010220210000
4303313313030123123100000
5214400313044121300300
62125113412145440000
766024341145426345
oct6367671433332000
91086686148126700
10228139207603200
116676832712a273
1221706aa7040000
139a3b5868087ba
144049dd48027cc
151b59657237c00
hexcf7dcc6db400

228139207603200 has 330 divisors, whose sum is σ = 844772670352886. Its totient is φ = 60837121474560.

The previous prime is 228139207603129. The next prime is 228139207603243. The reversal of 228139207603200 is 2306702931822.

228139207603200 is a `hidden beast` number, since 2 + 2 + 8 + 1 + 39 + 2 + 0 + 7 + 603 + 2 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 25570255343616 + 202568952259584 = 5056704^2 + 14232672^2 .

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 29 ways as a sum of consecutive naturals, for example, 52936819 + ... + 57084018.

Almost surely, 2228139207603200 is an apocalyptic number.

228139207603200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228139207603200 is an abundant number, since it is smaller than the sum of its proper divisors (616633462749686).

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

228139207603200 is a wasteful number, since it uses less digits than its factorization.

228139207603200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110020879 (or 110020847 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 228139207603200 in words is "two hundred twenty-eight trillion, one hundred thirty-nine billion, two hundred seven million, six hundred three thousand, two hundred".