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2891083932 = 22321131271107
BaseRepresentation
bin1010110001010010…
…0111000010011100
321110111002021120200
42230110213002130
521410104141212
61154513543500
7131433544062
oct25424470234
97414067520
102891083932
111253a3a170
12688274b90
13370c6b669
141d5d74032
1511dc2c6dc
hexac52709c

2891083932 has 216 divisors, whose sum is σ = 8431952256. Its totient is φ = 828072000.

The previous prime is 2891083913. The next prime is 2891083939. The reversal of 2891083932 is 2393801982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891083939) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27019423 + ... + 27019529.

It is an arithmetic number, because the mean of its divisors is an integer number (39036816).

Almost surely, 22891083932 is an apocalyptic number.

2891083932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2891083932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4215976128).

2891083932 is an abundant number, since it is smaller than the sum of its proper divisors (5540868324).

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

2891083932 is a wasteful number, since it uses less digits than its factorization.

2891083932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2891083932 is about 53768.8007305352. The cubic root of 2891083932 is about 1424.5801873211.

The spelling of 2891083932 in words is "two billion, eight hundred ninety-one million, eighty-three thousand, nine hundred thirty-two".