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1388633022293 = 111756893130523
BaseRepresentation
bin10100001101010000111…
…110100101111101010101
311220202022020000111110112
4110031100332211331111
5140222410023203133
62541532412532405
7202216422636236
oct24152076457525
94822266014415
101388633022293
11495a09159740
121a5162481105
13a0c4196076a
144b2d2acd08d
15261c5281648
hex14350fa5f55

1388633022293 has 16 divisors (see below), whose sum is σ = 1604023010496. Its totient is φ = 1188105219840.

The previous prime is 1388633022289. The next prime is 1388633022299. The reversal of 1388633022293 is 3922203368831.

It is not a de Polignac number, because 1388633022293 - 22 = 1388633022289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388633022299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10573730 + ... + 10704252.

It is an arithmetic number, because the mean of its divisors is an integer number (100251438156).

Almost surely, 21388633022293 is an apocalyptic number.

It is an amenable number.

1388633022293 is a deficient number, since it is larger than the sum of its proper divisors (215389988203).

1388633022293 is a wasteful number, since it uses less digits than its factorization.

1388633022293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187444.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 1388633022293 in words is "one trillion, three hundred eighty-eight billion, six hundred thirty-three million, twenty-two thousand, two hundred ninety-three".

Divisors: 1 11 17 187 56893 130523 625823 967181 1435753 2218891 10638991 24407801 7425845039 81684295429 126239365663 1388633022293