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228708480 = 273572111317
BaseRepresentation
bin11011010000111…
…01000010000000
3120221100121001110
431220131002000
5432022132410
634410003320
75444663400
oct1550350200
9527317043
10228708480
11108111080
1264716540
13384c9480
1422536800
151512a720
hexda1d080

228708480 has 768 divisors, whose sum is σ = 1054892160. Its totient is φ = 41287680.

The previous prime is 228708457. The next prime is 228708509. The reversal of 228708480 is 84807822.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13453432 + ... + 13453448.

Almost surely, 2228708480 is an apocalyptic number.

228708480 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 228708480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527446080).

228708480 is an abundant number, since it is smaller than the sum of its proper divisors (826183680).

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

228708480 is a wasteful number, since it uses less digits than its factorization.

228708480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 228708480 is about 15123.1107911038. The cubic root of 228708480 is about 611.5435958103.

The spelling of 228708480 in words is "two hundred twenty-eight million, seven hundred eight thousand, four hundred eighty".