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204131250 = 2325519191
BaseRepresentation
bin11000010101011…
…00101110110010
3112020002221102200
430022230232302
5404224200000
632131124030
75026041561
oct1412545662
9466087380
10204131250
11a5254914
1258443616
13333a282b
141d179bd8
1512dc3500
hexc2acbb2

204131250 has 144 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 51300000.

The previous prime is 204131237. The next prime is 204131267. The reversal of 204131250 is 52131402.

204131250 is a `hidden beast` number, since 2 + 0 + 413 + 1 + 250 = 666.

204131250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1068655 + ... + 1068845.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2204131250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204131250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

204131250 is an abundant number, since it is smaller than the sum of its proper divisors (380831310).

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

204131250 is a wasteful number, since it uses less digits than its factorization.

204131250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 204131250 is about 14287.4507873168. The cubic root of 204131250 is about 588.8027526534.

Adding to 204131250 its reverse (52131402), we get a palindrome (256262652).

The spelling of 204131250 in words is "two hundred four million, one hundred thirty-one thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 19 25 30 38 45 50 57 75 90 95 114 125 150 171 190 191 225 250 285 342 375 382 450 475 570 573 625 750 855 950 955 1125 1146 1250 1425 1710 1719 1875 1910 2250 2375 2850 2865 3125 3438 3629 3750 4275 4750 4775 5625 5730 6250 7125 7258 8550 8595 9375 9550 10887 11250 11875 14250 14325 17190 18145 18750 21375 21774 23750 23875 28125 28650 32661 35625 36290 42750 42975 47750 54435 56250 59375 65322 71250 71625 85950 90725 106875 108870 118750 119375 143250 163305 178125 181450 213750 214875 238750 272175 326610 356250 358125 429750 453625 534375 544350 596875 716250 816525 907250 1068750 1074375 1193750 1360875 1633050 1790625 2148750 2268125 2721750 3581250 4082625 4536250 5371875 6804375 8165250 10743750 11340625 13608750 20413125 22681250 34021875 40826250 68043750 102065625 204131250