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228652400 = 2452619371
BaseRepresentation
bin11011010000011…
…11010101110000
3120221020202010102
431220033111300
5432013334100
634404451532
75444341034
oct1550172560
9527222112
10228652400
11108082a29
12646a9ba8
13384a9aa2
14225201c4
1515118cd5
hexda0f570

228652400 has 60 divisors (see below), whose sum is σ = 558402504. Its totient is φ = 89952000.

The previous prime is 228652387. The next prime is 228652427. The reversal of 228652400 is 4256822.

228652400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19715 + ... + 29085.

Almost surely, 2228652400 is an apocalyptic number.

228652400 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 228652400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279201252).

228652400 is an abundant number, since it is smaller than the sum of its proper divisors (329750104).

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

228652400 is a wasteful number, since it uses less digits than its factorization.

228652400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450 (or 9439 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 228652400 is about 15121.2565615428. The cubic root of 228652400 is about 611.4936076210.

The spelling of 228652400 in words is "two hundred twenty-eight million, six hundred fifty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 61 80 100 122 200 244 305 400 488 610 976 1220 1525 2440 3050 4880 6100 9371 12200 18742 24400 37484 46855 74968 93710 149936 187420 234275 374840 468550 571631 749680 937100 1143262 1874200 2286524 2858155 3748400 4573048 5716310 9146096 11432620 14290775 22865240 28581550 45730480 57163100 114326200 228652400