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1293874950842 = 217371636309923
BaseRepresentation
bin10010110101000000111…
…101001111001010111010
311120200201100222201100122
4102311000331033022322
5132144323441411332
62430221542333242
7162323266422245
oct22650075171272
94520640881318
101293874950842
114598027510a1
1218a91812a222
13950201574b6
14468a3d0825c
15239cb33ac12
hex12d40f4f2ba

1293874950842 has 32 divisors (see below), whose sum is σ = 2123466103872. Its totient is φ = 588791441664.

The previous prime is 1293874950821. The next prime is 1293874950857. The reversal of 1293874950842 is 2480594783921.

It is a super-2 number, since 2×12938749508422 (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2949908 + ... + 3360015.

It is an arithmetic number, because the mean of its divisors is an integer number (66358315746).

Almost surely, 21293874950842 is an apocalyptic number.

1293874950842 is a deficient number, since it is larger than the sum of its proper divisors (829591153030).

1293874950842 is a wasteful number, since it uses less digits than its factorization.

1293874950842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310142.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 1293874950842 in words is "one trillion, two hundred ninety-three billion, eight hundred seventy-four million, nine hundred fifty thousand, eight hundred forty-two".

Divisors: 1 2 17 34 37 74 163 326 629 1258 2771 5542 6031 12062 102527 205054 6309923 12619846 107268691 214537382 233467151 466934302 1028517449 2057034898 3968941567 7937883134 17484796633 34969593266 38055145613 76110291226 646937475421 1293874950842