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78245206641316 = 221113169380798771
BaseRepresentation
bin10001110010100111100001…
…101111110100101010100100
3101021001011112222120011211001
4101302213201233310222210
540223432140400010231
6434225203544523044
722324013106512341
oct2162474157645244
9337034488504731
1078245206641316
1122a27673334250
128938541480484
13348765059c320
1415471340857c8
1590a50da3ab61
hex4729e1bf4aa4

78245206641316 has 48 divisors (see below), whose sum is σ = 160962788847168. Its totient is φ = 32810764521600.

The previous prime is 78245206641311. The next prime is 78245206641341. The reversal of 78245206641316 is 61314660254287.

It is a super-2 number, since 2×782452066413162 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78245206641311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39430990 + ... + 41367781.

It is an arithmetic number, because the mean of its divisors is an integer number (3353391434316).

Almost surely, 278245206641316 is an apocalyptic number.

It is an amenable number.

78245206641316 is an abundant number, since it is smaller than the sum of its proper divisors (82717582205852).

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

78245206641316 is a wasteful number, since it uses less digits than its factorization.

78245206641316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80800492 (or 80800490 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 78245206641316 in words is "seventy-eight trillion, two hundred forty-five billion, two hundred six million, six hundred forty-one thousand, three hundred sixteen".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 1693 3386 6772 18623 22009 37246 44018 74492 88036 242099 484198 968396 80798771 161597542 323195084 888786481 1050384023 1777572962 2100768046 3555145924 4201536092 11554224253 23108448506 46216897012 136792319303 273584638606 547169277212 1504715512333 1778300150939 3009431024666 3556600301878 6018862049332 7113200603756 19561301660329 39122603320658 78245206641316