Search a number
-
+
208002072 = 233174710847
BaseRepresentation
bin11000110010111…
…01110000011000
3112111101121012110
430121131300120
5411222031242
632350112320
75103663015
oct1431356030
9474347173
10208002072
11a7459043
12597ab6a0
1334129665
141d8a670c
15133da39c
hexc65dc18

208002072 has 64 divisors (see below), whose sum is σ = 562360320. Its totient is φ = 63861248.

The previous prime is 208002071. The next prime is 208002079. The reversal of 208002072 is 270200802.

208002072 is nontrivially palindromic in base 7.

208002072 is a modest number, since divided by 2072 gives 208 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208002071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13753 + ... + 24599.

It is an arithmetic number, because the mean of its divisors is an integer number (8786880).

Almost surely, 2208002072 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 208002072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281180160).

208002072 is an abundant number, since it is smaller than the sum of its proper divisors (354358248).

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

208002072 is a wasteful number, since it uses less digits than its factorization.

208002072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10920 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 208002072 is about 14422.2769353525. The cubic root of 208002072 is about 592.5011810762.

Adding to 208002072 its reverse (270200802), we get a palindrome (478202874).

The spelling of 208002072 in words is "two hundred eight million, two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 47 51 68 94 102 136 141 188 204 282 376 408 564 799 1128 1598 2397 3196 4794 6392 9588 10847 19176 21694 32541 43388 65082 86776 130164 184399 260328 368798 509809 553197 737596 1019618 1106394 1475192 1529427 2039236 2212788 3058854 4078472 4425576 6117708 8666753 12235416 17333506 26000259 34667012 52000518 69334024 104001036 208002072