Search a number
-
+
204611472 = 243213293769
BaseRepresentation
bin11000011001000…
…01111110010000
3112021000100011200
430030201332100
5404340031342
632145311200
75033111622
oct1414417620
9467010150
10204611472
11a555269a
1258635500
13335102a0
141d262c12
1512e6a94c
hexc321f90

204611472 has 120 divisors (see below), whose sum is σ = 638110200. Its totient is φ = 60770304.

The previous prime is 204611467. The next prime is 204611479. The reversal of 204611472 is 274116402.

204611472 is a `hidden beast` number, since 2 + 0 + 4 + 611 + 47 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29419776 + 175191696 = 5424^2 + 13236^2 .

It is not an unprimeable number, because it can be changed into a prime (204611479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52404 + ... + 56172.

It is an arithmetic number, because the mean of its divisors is an integer number (5317585).

Almost surely, 2204611472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204611472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319055100).

204611472 is an abundant number, since it is smaller than the sum of its proper divisors (433498728).

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

204611472 is a wasteful number, since it uses less digits than its factorization.

204611472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825 (or 3816 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 204611472 is about 14304.2466421689. The cubic root of 204611472 is about 589.2641136577.

Adding to 204611472 its reverse (274116402), we get a palindrome (478727874).

The spelling of 204611472 in words is "two hundred four million, six hundred eleven thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 29 36 39 48 52 58 72 78 87 104 116 117 144 156 174 208 232 234 261 312 348 377 464 468 522 624 696 754 936 1044 1131 1392 1508 1872 2088 2262 3016 3393 3769 4176 4524 6032 6786 7538 9048 11307 13572 15076 18096 22614 27144 30152 33921 45228 48997 54288 60304 67842 90456 97994 109301 135684 146991 180912 195988 218602 271368 293982 327903 391976 437204 440973 542736 587964 655806 783952 874408 881946 983709 1175928 1311612 1420913 1748816 1763892 1967418 2351856 2623224 2841826 3527784 3934836 4262739 5246448 5683652 7055568 7869672 8525478 11367304 12788217 15739344 17050956 22734608 25576434 34101912 51152868 68203824 102305736 204611472