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68768100436 = 227791092231279
BaseRepresentation
bin100000000001011100…
…1011111000001010100
320120111120022110100211
41000002321133001110
52111314113203221
651331443015204
74653065131510
oct1000271370124
9216446273324
1068768100436
1127189888762
12113b236a504
13663c1646b9
143485181140
151bc73c36e1
hex1002e5f054

68768100436 has 96 divisors (see below), whose sum is σ = 141295616000. Its totient is φ = 28680283008.

The previous prime is 68768100419. The next prime is 68768100469. The reversal of 68768100436 is 63400186786.

It is a self number, because there is not a number n which added to its sum of digits gives 68768100436.

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, 53766445 + ... + 53767723.

Almost surely, 268768100436 is an apocalyptic number.

It is an amenable number.

68768100436 is an abundant number, since it is smaller than the sum of its proper divisors (72527515564).

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

68768100436 is a wasteful number, since it uses less digits than its factorization.

68768100436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 68768100436 in words is "sixty-eight billion, seven hundred sixty-eight million, one hundred thousand, four hundred thirty-six".

Divisors: 1 2 4 7 14 28 79 109 158 218 223 316 436 446 553 763 892 1106 1279 1526 1561 2212 2558 3052 3122 5116 6244 8611 8953 17222 17617 17906 24307 34444 35234 35812 48614 60277 70468 97228 101041 120554 123319 139411 170149 202082 241108 246638 278822 285217 340298 404164 493276 557644 570434 680596 707287 975877 1140868 1414574 1920253 1951754 1996519 2829148 3840506 3903508 3993038 7681012 7986076 11013469 13441771 22026938 22532143 26883542 31088653 44053876 45064286 53767084 62177306 77094283 90128572 124354612 154188566 157725001 217620571 308377132 315450002 435241142 630900004 870482284 2456003587 4912007174 9824014348 17192025109 34384050218 68768100436