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1290920110293 = 311312774555583
BaseRepresentation
bin10010110010010000110…
…101011010100011010101
311120102002102221021010210
4102302100311122203111
5132122301022012133
62425012430040033
7162160126613622
oct22622065324325
94512072837123
101290920110293
11458526825710
1218a232649019
139496bc25038
14466a36d9349
15238a6c17763
hex12c90d5a8d5

1290920110293 has 32 divisors (see below), whose sum is σ = 1945270812672. Its totient is φ = 754404379200.

The previous prime is 1290920110273. The next prime is 1290920110301. The reversal of 1290920110293 is 3920110290921.

It is not a de Polignac number, because 1290920110293 - 25 = 1290920110261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290920110273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1994421 + ... + 2561162.

It is an arithmetic number, because the mean of its divisors is an integer number (60789712896).

Almost surely, 21290920110293 is an apocalyptic number.

It is an amenable number.

1290920110293 is a deficient number, since it is larger than the sum of its proper divisors (654350702379).

1290920110293 is a wasteful number, since it uses less digits than its factorization.

1290920110293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555905.

The product of its (nonzero) digits is 17496, while the sum is 39.

The spelling of 1290920110293 in words is "one trillion, two hundred ninety billion, nine hundred twenty million, one hundred ten thousand, two hundred ninety-three".

Divisors: 1 3 11 31 33 93 277 341 831 1023 3047 8587 9141 25761 94457 283371 4555583 13666749 50111413 141223073 150334239 423669219 1261896491 1553453803 3785689473 4660361409 13880861401 39118791221 41642584203 117356373663 430306703431 1290920110293