[go: up one dir, main page]

Search a number
-
+
220445524 = 2213192389109
BaseRepresentation
bin11010010001110…
…11101101010100
3120100210210102001
431020323231110
5422413224044
633512525044
75314520215
oct1510735524
9510723361
10220445524
11103487a92
12619b0784
1336895450
14213c540c
15145472d4
hexd23bb54

220445524 has 96 divisors (see below), whose sum is σ = 465696000. Its totient is φ = 90326016.

The previous prime is 220445513. The next prime is 220445539. The reversal of 220445524 is 425544022.

It is a junction number, because it is equal to n+sod(n) for n = 220445492 and 220445501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2022382 + ... + 2022490.

It is an arithmetic number, because the mean of its divisors is an integer number (4851000).

Almost surely, 2220445524 is an apocalyptic number.

It is an amenable number.

220445524 is an abundant number, since it is smaller than the sum of its proper divisors (245250476).

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

220445524 is a wasteful number, since it uses less digits than its factorization.

220445524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 220445524 is about 14847.4079892754. The cubic root of 220445524 is about 604.0883055838.

Adding to 220445524 its reverse (425544022), we get a palindrome (645989546).

The spelling of 220445524 in words is "two hundred twenty million, four hundred forty-five thousand, five hundred twenty-four".

Divisors: 1 2 4 13 19 23 26 38 46 52 76 89 92 109 178 218 247 299 356 436 437 494 598 874 988 1157 1196 1417 1691 1748 2047 2071 2314 2507 2834 3382 4094 4142 4628 5014 5668 5681 6764 8188 8284 9701 10028 11362 19402 21983 22724 26611 26923 32591 38804 38893 43966 47633 53222 53846 65182 77786 87932 95266 106444 107692 126113 130364 155572 184319 190532 223123 252226 368638 446246 504452 505609 619229 737276 892492 1011218 1238458 2022436 2396147 2476916 2900599 4239337 4792294 5801198 8478674 9584588 11602396 16957348 55111381 110222762 220445524