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13420113105452 = 22131173871916979
BaseRepresentation
bin1100001101001001110100…
…0100110001001000101100
31202111221122202102112000212
43003102131010301020230
53224333342423333302
644313040450241552
72553366625153664
oct303223504611054
952457582375025
1013420113105452
11430448aa93999
121608aa88862b8
13764685253091
143457735131a4
1518414bbde052
hexc349d13122c

13420113105452 has 48 divisors (see below), whose sum is σ = 23805394905600. Its totient is φ = 6619195202880.

The previous prime is 13420113105419. The next prime is 13420113105461. The reversal of 13420113105452 is 25450131102431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790386299 + ... + 790403277.

It is an arithmetic number, because the mean of its divisors is an integer number (495945727200).

Almost surely, 213420113105452 is an apocalyptic number.

It is an amenable number.

13420113105452 is a deficient number, since it is larger than the sum of its proper divisors (10385281800148).

13420113105452 is a wasteful number, since it uses less digits than its factorization.

13420113105452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26006 (or 26004 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 13420113105452 its reverse (25450131102431), we get a palindrome (38870244207883).

The spelling of 13420113105452 in words is "thirteen trillion, four hundred twenty billion, one hundred thirteen million, one hundred five thousand, four hundred fifty-two".

Divisors: 1 2 4 131 173 262 346 524 692 8719 16979 17438 22663 33958 34876 45326 67916 90652 1142189 1508387 2224249 2284378 2937367 3016774 4448498 4568756 5874734 6033548 8896996 11749468 148039901 197598697 296079802 384795077 395197394 592159604 769590154 790394788 1539180308 19393227031 25610902873 38786454062 51221805746 77572908124 102443611492 3355028276363 6710056552726 13420113105452