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2857850268 = 22371319181761
BaseRepresentation
bin1010101001010111…
…0101010110011100
321101011112211120020
42222111311112130
521323102202033
61151325352140
7130551216660
oct25225652634
97334484506
102857850268
111237200229
12679108650
13367103880
141d17a28a0
1511ad656b3
hexaa57559c

2857850268 has 192 divisors, whose sum is σ = 8698260480. Its totient is φ = 709171200.

The previous prime is 2857850239. The next prime is 2857850309. The reversal of 2857850268 is 8620587582.

It is a self number, because there is not a number n which added to its sum of digits gives 2857850268.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3755008 + ... + 3755768.

It is an arithmetic number, because the mean of its divisors is an integer number (45303440).

Almost surely, 22857850268 is an apocalyptic number.

2857850268 is a gapful number since it is divisible by the number (28) 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 2857850268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4349130240).

2857850268 is an abundant number, since it is smaller than the sum of its proper divisors (5840410212).

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

2857850268 is a wasteful number, since it uses less digits than its factorization.

2857850268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The square root of 2857850268 is about 53458.8651955875. The cubic root of 2857850268 is about 1419.1005128048.

The spelling of 2857850268 in words is "two billion, eight hundred fifty-seven million, eight hundred fifty thousand, two hundred sixty-eight".