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802407435450361 = 131781171035743189
BaseRepresentation
bin1011011001110010010000101…
…0001001111011011111111001
310220020002101211211001110121221
42312130210022021323133321
51320133120411433402421
611522324515330432041
7331005011162353636
oct26634441211733771
93806071754043557
10802407435450361
1121274309a658374
1275bb3b2a732621
1328596909248470
1410220a2721318d
1562b76d37b4841
hex2d9c90a27b7f9

802407435450361 has 32 divisors (see below), whose sum is σ = 915184589346720. Its totient is φ = 696944831164416.

The previous prime is 802407435450307. The next prime is 802407435450391. The reversal of 802407435450361 is 163054534704208.

It can be written as a sum of positive squares in 16 ways, for example, as 197103516894736 + 605303918555625 = 14039356^2 + 24602925^2 .

It is a cyclic number.

It is not a de Polignac number, because 802407435450361 - 29 = 802407435449849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 802407435450299 and 802407435450308.

It is not an unprimeable number, because it can be changed into a prime (802407435450391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18578955355 + ... + 18578998543.

It is an arithmetic number, because the mean of its divisors is an integer number (28599518417085).

Almost surely, 2802407435450361 is an apocalyptic number.

It is an amenable number.

802407435450361 is a deficient number, since it is larger than the sum of its proper divisors (112777153896359).

802407435450361 is a wasteful number, since it uses less digits than its factorization.

802407435450361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61693.

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 802407435450361 in words is "eight hundred two trillion, four hundred seven billion, four hundred thirty-five million, four hundred fifty thousand, three hundred sixty-one".

Divisors: 1 13 17 221 8117 10357 43189 105521 134641 137989 176069 561457 734213 1793857 2288897 9544769 84067769 350565113 447308473 1092880997 1429152073 4557346469 5815010149 5959606921 7604244041 18578976949 77474889973 98855172533 3630802875341 47200437379433 61723648880797 802407435450361