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13861614225281 = 1091275779173273
BaseRepresentation
bin1100100110110110100010…
…0101111000011110000001
31211002011020201200012210212
43021231220211320132001
53304102041220202111
645251534311403505
72630316502566314
oct311555045703601
954064221605725
1013861614225281
11446474a949929
12167a582683595
137971b5938854
1435cc9739897b
1519088bc8a98b
hexc9b68978781

13861614225281 has 16 divisors (see below), whose sum is σ = 14101453977600. Its totient is φ = 13623861702528.

The previous prime is 13861614225259. The next prime is 13861614225293. The reversal of 13861614225281 is 18252241616831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13861614225281 is a prime.

It is a super-2 number, since 2×138616142252812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13861614221281) 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, 79912061 + ... + 80085333.

It is an arithmetic number, because the mean of its divisors is an integer number (881340873600).

Almost surely, 213861614225281 is an apocalyptic number.

It is an amenable number.

13861614225281 is a deficient number, since it is larger than the sum of its proper divisors (239839752319).

13861614225281 is a wasteful number, since it uses less digits than its factorization.

13861614225281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179288.

The product of its digits is 1105920, while the sum is 50.

The spelling of 13861614225281 in words is "thirteen trillion, eight hundred sixty-one billion, six hundred fourteen million, two hundred twenty-five thousand, two hundred eighty-one".

Divisors: 1 109 127 5779 13843 173273 629911 733933 18886757 22005671 79998697 1001344667 2398618139 109146568703 127170772709 13861614225281