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2881231430 = 257112340169
BaseRepresentation
bin1010101110111100…
…0001101001000110
321102210112201111012
42223233001221012
521400043401210
61153522442222
7131254030430
oct25357015106
97383481435
102881231430
11124941a900
12684b03372
1336bbcbc8c
141d492b650
1511ce33305
hexabbc1a46

2881231430 has 48 divisors (see below), whose sum is σ = 6514935840. Its totient is φ = 898043520.

The previous prime is 2881231411. The next prime is 2881231471. The reversal of 2881231430 is 341321882.

2881231430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161615 + ... + 178554.

It is an arithmetic number, because the mean of its divisors is an integer number (135727830).

Almost surely, 22881231430 is an apocalyptic number.

2881231430 is an abundant number, since it is smaller than the sum of its proper divisors (3633704410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2881231430 is a wasteful number, since it uses less digits than its factorization.

2881231430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340205 (or 340194 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2881231430 is about 53677.1034054558. The cubic root of 2881231430 is about 1422.9600736939.

The spelling of 2881231430 in words is "two billion, eight hundred eighty-one million, two hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 121 154 242 385 605 770 847 1210 1694 4235 8470 340169 680338 1700845 2381183 3401690 3741859 4762366 7483718 11905915 18709295 23811830 26193013 37418590 41160449 52386026 82320898 130965065 205802245 261930130 288123143 411604490 576246286 1440615715 2881231430