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268802628068 = 22137172806779
BaseRepresentation
bin1111101001010111100…
…0101001100111100100
3221200211022120022212102
43322111320221213210
513401001433044233
6323253005111232
725264115432252
oct3722570514744
9850738508772
10268802628068
11a3aa9091a97
1244119558518
131c46a682610
14d01da8d5d2
156ed38b81e8
hex3e95e299e4

268802628068 has 24 divisors (see below), whose sum is σ = 513724639680. Its totient is φ = 122315387040.

The previous prime is 268802628067. The next prime is 268802628071. The reversal of 268802628068 is 860826208862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (268802628067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36399698 + ... + 36407081.

It is an arithmetic number, because the mean of its divisors is an integer number (21405193320).

Almost surely, 2268802628068 is an apocalyptic number.

It is an amenable number.

268802628068 is a deficient number, since it is larger than the sum of its proper divisors (244922011612).

268802628068 is a wasteful number, since it uses less digits than its factorization.

268802628068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72806867 (or 72806865 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 268802628068 in words is "two hundred sixty-eight billion, eight hundred two million, six hundred twenty-eight thousand, sixty-eight".

Divisors: 1 2 4 13 26 52 71 142 284 923 1846 3692 72806779 145613558 291227116 946488127 1892976254 3785952508 5169281309 10338562618 20677125236 67200657017 134401314034 268802628068