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13885176887997 = 3157143419205553
BaseRepresentation
bin1100101000001110010100…
…0010010011101010111101
31211011102001211222111112120
43022003211002103222331
53304443320240403442
645310432345153153
72632112425120062
oct312034502235275
954142054874476
1013885176887997
1144737414050a8
12168305978b7b9
1379949c44ca1c
143600908b0c69
151912ba6904ec
hexca0e5093abd

13885176887997 has 16 divisors (see below), whose sum is σ = 18631710557760. Its totient is φ = 9197715301632.

The previous prime is 13885176887971. The next prime is 13885176888031. The reversal of 13885176887997 is 79978867158831.

It is a happy number.

It is not a de Polignac number, because 13885176887997 - 28 = 13885176887741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13885176887927) 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, 67447573 + ... + 67653125.

It is an arithmetic number, because the mean of its divisors is an integer number (1164481909860).

Almost surely, 213885176887997 is an apocalyptic number.

It is an amenable number.

13885176887997 is a deficient number, since it is larger than the sum of its proper divisors (4746533669763).

13885176887997 is a wasteful number, since it uses less digits than its factorization.

13885176887997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349132.

The product of its digits is 10241925120, while the sum is 87.

The spelling of 13885176887997 in words is "thirteen trillion, eight hundred eighty-five billion, one hundred seventy-six million, eight hundred eighty-seven thousand, nine hundred ninety-seven".

Divisors: 1 3 157 471 143419 205553 430257 616659 22516783 32271821 67550349 96815463 29480205707 88440617121 4628392295999 13885176887997