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2887142022 = 233238926119
BaseRepresentation
bin1010110000010110…
…0100101010000110
321110012200000022000
42230011210222012
521403102021042
61154253250130
7131355205452
oct25405445206
97405600260
102887142022
111251797596
12686a93946
133701bb37b
141d5629662
1511d6ee74c
hexac164a86

2887142022 has 64 divisors (see below), whose sum is σ = 6770304000. Its totient is φ = 910160064.

The previous prime is 2887142021. The next prime is 2887142099. The reversal of 2887142022 is 2202417882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2887142021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97479 + ... + 123597.

It is an arithmetic number, because the mean of its divisors is an integer number (105786000).

Almost surely, 22887142022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2887142022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3385152000).

2887142022 is an abundant number, since it is smaller than the sum of its proper divisors (3883161978).

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

2887142022 is a wasteful number, since it uses less digits than its factorization.

2887142022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26242 (or 26236 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 2887142022 is about 53732.1321185006. The cubic root of 2887142022 is about 1423.9324347624.

It can be divided in two parts, 288 and 7142022, that added together give a triangular number (7142310 = T3779).

The spelling of 2887142022 in words is "two billion, eight hundred eighty-seven million, one hundred forty-two thousand, twenty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 89 138 178 207 267 414 534 621 801 1242 1602 2047 2403 4094 4806 6141 12282 18423 26119 36846 52238 55269 78357 110538 156714 235071 470142 600737 705213 1201474 1410426 1802211 2324591 3604422 4649182 5406633 6973773 10813266 13947546 16219899 20921319 32439798 41842638 53465593 62763957 106931186 125527914 160396779 320793558 481190337 962380674 1443571011 2887142022