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2812069821431 = 13223996936001
BaseRepresentation
bin101000111010111100011…
…011000011101111110111
3100221211102222111001022002
4220322330123003233313
5332033104333241211
65551502543325515
7410110466044613
oct50727433035767
910854388431262
102812069821431
11994657116012
12394bb85b089b
1317523bc80a00
149a167c0a343
154d235c3303b
hex28ebc6c3bf7

2812069821431 has 12 divisors (see below), whose sum is σ = 3046292078400. Its totient is φ = 2594674368000.

The previous prime is 2812069821401. The next prime is 2812069821511. The reversal of 2812069821431 is 1341289602182.

It is not a de Polignac number, because 2812069821431 - 214 = 2812069805047 is a prime.

It is a super-2 number, since 2×28120698214312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812069821401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3062570 + ... + 3873431.

It is an arithmetic number, because the mean of its divisors is an integer number (253857673200).

Almost surely, 22812069821431 is an apocalyptic number.

2812069821431 is a deficient number, since it is larger than the sum of its proper divisors (234222256969).

2812069821431 is a wasteful number, since it uses less digits than its factorization.

2812069821431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938426 (or 6938413 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 2812069821431 in words is "two trillion, eight hundred twelve billion, sixty-nine million, eight hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 13 169 2399 31187 405431 6936001 90168013 1172184169 16639466399 216313063187 2812069821431