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2881233897 = 323296721491
BaseRepresentation
bin1010101110111100…
…0010001111101001
321102210112211212120
42223233002033221
521400043441042
61153522501453
7131254040553
oct25357021751
97383484776
102881233897
111249421743
12684b04889
1336bc00139
141d492c4d3
1511ce33dec
hexabbc23e9

2881233897 has 32 divisors (see below), whose sum is σ = 4208993280. Its totient is φ = 1747394880.

The previous prime is 2881233893. The next prime is 2881233911. The reversal of 2881233897 is 7983321882.

It is not a de Polignac number, because 2881233897 - 22 = 2881233893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2881233893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123322 + ... + 144812.

It is an arithmetic number, because the mean of its divisors is an integer number (131531040).

Almost surely, 22881233897 is an apocalyptic number.

It is an amenable number.

2881233897 is a deficient number, since it is larger than the sum of its proper divisors (1327759383).

2881233897 is a wasteful number, since it uses less digits than its factorization.

2881233897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21613.

The product of its digits is 1161216, while the sum is 51.

The square root of 2881233897 is about 53677.1263854540. The cubic root of 2881233897 is about 1422.9604798214.

The spelling of 2881233897 in words is "two billion, eight hundred eighty-one million, two hundred thirty-three thousand, eight hundred ninety-seven".

Divisors: 1 3 23 29 67 69 87 201 667 1541 1943 2001 4623 5829 21491 44689 64473 134067 494293 623239 1439897 1482879 1869717 4319691 14334497 33117631 41757013 43003491 99352893 125271039 960411299 2881233897