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228674016543840 = 2535734613012871
BaseRepresentation
bin110011111111101001010001…
…100001101000010001100000
31002222200000121101112000210020
4303333221101201220101200
5214433043341213400330
62130203220513233440
766111103206423000
oct6377512141502140
91088600541460706
10228674016543840
1166954118901aaa
1221792681562880
139a79b3740356a
144067c4a9da000
151b68508c5b210
hexcffa51868460

228674016543840 has 384 divisors, whose sum is σ = 841849463347200. Its totient is φ = 52154948966400.

The previous prime is 228674016543839. The next prime is 228674016543859. The reversal of 228674016543840 is 48345610476822.

It is a super-3 number, since 3×2286740165438403 (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74392605 + ... + 77405475.

It is an arithmetic number, because the mean of its divisors is an integer number (2192316310800).

Almost surely, 2228674016543840 is an apocalyptic number.

228674016543840 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 228674016543840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420924731673600).

228674016543840 is an abundant number, since it is smaller than the sum of its proper divisors (613175446803360).

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

228674016543840 is a wasteful number, since it uses less digits than its factorization.

228674016543840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013371 (or 3013349 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 60.

The spelling of 228674016543840 in words is "two hundred twenty-eight trillion, six hundred seventy-four billion, sixteen million, five hundred forty-three thousand, eight hundred forty".