Search a number
-
+
228723200 = 2952107167
BaseRepresentation
bin11011010001000…
…00101000000000
3120221101100020122
431220200220000
5432023120300
634410155412
75445054326
oct1550405000
9527340218
10228723200
11108121142
1264722b68
1338503094
142253bd16
151512ec85
hexda20a00

228723200 has 120 divisors (see below), whose sum is σ = 575400672. Its totient is φ = 90091520.

The previous prime is 228723199. The next prime is 228723217. The reversal of 228723200 is 2327822.

228723200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228723200.

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, 1369517 + ... + 1369683.

Almost surely, 2228723200 is an apocalyptic number.

228723200 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 228723200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287700336).

228723200 is an abundant number, since it is smaller than the sum of its proper divisors (346677472).

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

228723200 is a wasteful number, since it uses less digits than its factorization.

228723200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 228723200 is about 15123.5974556320. The cubic root of 228723200 is about 611.5567154646.

The spelling of 228723200 in words is "two hundred twenty-eight million, seven hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 107 128 160 167 200 214 256 320 334 400 428 512 535 640 668 800 835 856 1070 1280 1336 1600 1670 1712 2140 2560 2672 2675 3200 3340 3424 4175 4280 5344 5350 6400 6680 6848 8350 8560 10688 10700 12800 13360 13696 16700 17120 17869 21376 21400 26720 27392 33400 34240 35738 42752 42800 53440 54784 66800 68480 71476 85504 85600 89345 106880 133600 136960 142952 171200 178690 213760 267200 273920 285904 342400 357380 427520 446725 534400 571808 684800 714760 893450 1068800 1143616 1369600 1429520 1786900 2137600 2287232 2859040 3573800 4574464 5718080 7147600 9148928 11436160 14295200 22872320 28590400 45744640 57180800 114361600 228723200