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2081274799215 = 351131279668431
BaseRepresentation
bin11110010010010101101…
…001010010010001101111
321100222010121201102201210
4132102111221102101233
5233044422322033330
64232042514005503
7303236633620323
oct36222551222157
97328117642653
102081274799215
11732733402437
12297446876893
1312135681c741
1472a3ca69983
153921335e8b0
hex1e495a5246f

2081274799215 has 32 divisors (see below), whose sum is σ = 3385962233856. Its totient is φ = 1091527073280.

The previous prime is 2081274799187. The next prime is 2081274799229. The reversal of 2081274799215 is 5129974721802.

It is a happy number.

It is not a de Polignac number, because 2081274799215 - 28 = 2081274798959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4618951 + ... + 5049480.

It is an arithmetic number, because the mean of its divisors is an integer number (105811319808).

Almost surely, 22081274799215 is an apocalyptic number.

2081274799215 is a deficient number, since it is larger than the sum of its proper divisors (1304687434641).

2081274799215 is a wasteful number, since it uses less digits than its factorization.

2081274799215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668679.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 2081274799215 in words is "two trillion, eighty-one billion, two hundred seventy-four million, seven hundred ninety-nine thousand, two hundred fifteen".

Divisors: 1 3 5 15 113 127 339 381 565 635 1695 1905 14351 43053 71755 215265 9668431 29005293 48342155 145026465 1092532703 1227890737 3277598109 3683672211 5462663515 6139453685 16387990545 18418361055 138751653281 416254959843 693758266405 2081274799215