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2856669120 = 26355172161
BaseRepresentation
bin1010101001000101…
…0100111111000000
321101002022211100000
42222101110333000
521322301402440
61151244200000
7130535200254
oct25221247700
97332284300
102856669120
111236573878
12678839000
13366aac076
141d1576264
1511abd0730
hexaa454fc0

2856669120 has 336 divisors, whose sum is σ = 10794053088. Its totient is φ = 716636160.

The previous prime is 2856669119. The next prime is 2856669121. The reversal of 2856669120 is 219666582.

It is an interprime number because it is at equal distance from previous prime (2856669119) and next prime (2856669121).

It is a super-2 number, since 2×28566691202 = 16321116922323148800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856669121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1320840 + ... + 1323000.

It is an arithmetic number, because the mean of its divisors is an integer number (32125158).

Almost surely, 22856669120 is an apocalyptic number.

2856669120 is a gapful number since it is divisible by the number (20) 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 2856669120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5397026544).

2856669120 is an abundant number, since it is smaller than the sum of its proper divisors (7937383968).

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

2856669120 is a wasteful number, since it uses less digits than its factorization.

2856669120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2856669120 is about 53447.8167935791. The cubic root of 2856669120 is about 1418.9049813682.

The spelling of 2856669120 in words is "two billion, eight hundred fifty-six million, six hundred sixty-nine thousand, one hundred twenty".