Search a number
-
+
61983087468 = 22361443191143
BaseRepresentation
bin111001101110011110…
…101101101101101100
312220222201010002100020
4321232132231231230
52003420132244333
644250304402140
74322666356551
oct715636555554
9186881102306
1061983087468
1124317923025
121001a016350
135aca562523
142ddddc8a28
15192b8c43b3
hexe6e7adb6c

61983087468 has 48 divisors (see below), whose sum is σ = 147330736896. Its totient is φ = 20276343360.

The previous prime is 61983087449. The next prime is 61983087589. The reversal of 61983087468 is 86478038916.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228705 + ... + 419847.

It is an arithmetic number, because the mean of its divisors is an integer number (3069390352).

Almost surely, 261983087468 is an apocalyptic number.

It is an amenable number.

61983087468 is an abundant number, since it is smaller than the sum of its proper divisors (85347649428).

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

61983087468 is a wasteful number, since it uses less digits than its factorization.

61983087468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191654 (or 191652 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 61983087468 in words is "sixty-one billion, nine hundred eighty-three million, eighty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 443 732 886 1329 1772 2658 5316 27023 54046 81069 108092 162138 191143 324276 382286 573429 764572 1146858 2293716 11659723 23319446 34979169 46638892 69958338 84676349 139916676 169352698 254029047 338705396 508058094 1016116188 5165257289 10330514578 15495771867 20661029156 30991543734 61983087468