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6857349120 = 211325372011
BaseRepresentation
bin1100110001011101…
…01101100000000000
3122200220022102120100
412120232231200000
5103020440132440
63052240442400
7331634335326
oct63056554000
918626272510
106857349120
1129a9881986
1213b4619400
138538ab13b
14490a25d16
152a203c230
hex198bad800

6857349120 has 288 divisors, whose sum is σ = 24420810960. Its totient is φ = 1778319360.

The previous prime is 6857349119. The next prime is 6857349181. The reversal of 6857349120 is 219437586.

6857349120 is a `hidden beast` number, since 68 + 573 + 4 + 9 + 12 + 0 = 666.

6857349120 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

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

6857349120 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3408915 + ... + 3410925.

It is a 1-persistent number, because it is pandigital, but 2⋅6857349120 = 13714698240 is not.

Almost surely, 26857349120 is an apocalyptic number.

6857349120 is a gapful number since it is divisible by the number (60) 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 6857349120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12210405480).

6857349120 is an abundant number, since it is smaller than the sum of its proper divisors (17563461840).

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

6857349120 is a wasteful number, since it uses less digits than its factorization.

6857349120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081 (or 2058 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 6857349120 is about 82809.1125420385. The cubic root of 6857349120 is about 1899.8475519421.

The spelling of 6857349120 in words is "six billion, eight hundred fifty-seven million, three hundred forty-nine thousand, one hundred twenty".