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13742493765 = 3571113915251
BaseRepresentation
bin11001100110001110…
…11101000001000101
31022110201221000102120
430303013131001011
5211121034300030
610151353200153
7664360161330
oct146307350105
938421830376
1013742493765
115912308a70
1227b6400059
1313b016ba20
14945205617
1555671a010
hex3331dd045

13742493765 has 64 divisors (see below), whose sum is σ = 29522368512. Its totient is φ = 5271840000.

The previous prime is 13742493733. The next prime is 13742493811. The reversal of 13742493765 is 56739424731.

It is not a de Polignac number, because 13742493765 - 25 = 13742493733 is a prime.

It is a super-2 number, since 2×137424937652 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 442611 + ... + 472640.

It is an arithmetic number, because the mean of its divisors is an integer number (461287008).

Almost surely, 213742493765 is an apocalyptic number.

13742493765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13742493765 is an abundant number, since it is smaller than the sum of its proper divisors (15779874747).

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

13742493765 is a wasteful number, since it uses less digits than its factorization.

13742493765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915290.

The product of its digits is 3810240, while the sum is 51.

The spelling of 13742493765 in words is "thirteen billion, seven hundred forty-two million, four hundred ninety-three thousand, seven hundred sixty-five".

Divisors: 1 3 5 7 11 13 15 21 33 35 39 55 65 77 91 105 143 165 195 231 273 385 429 455 715 1001 1155 1365 2145 3003 5005 15015 915251 2745753 4576255 6406757 10067761 11898263 13728765 19220271 30203283 32033785 35694789 50338805 59491315 70474327 83287841 96101355 130880893 151016415 178473945 211422981 249863523 352371635 392642679 416439205 654404465 916166251 1057114905 1249317615 1963213395 2748498753 4580831255 13742493765