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6857172192 = 2531379157443
BaseRepresentation
bin1100110001011100…
…00010010011100000
3122200212222102212110
412120232002103200
5103020414002232
63052232555320
7331633000443
oct63056022340
918625872773
106857172192
1129a9770a62
1213b4552b40
13853848750
144909bb65a
152a2004acc
hex198b824e0

6857172192 has 192 divisors, whose sum is σ = 19799700480. Its totient is φ = 2065250304.

The previous prime is 6857172103. The next prime is 6857172227. The reversal of 6857172192 is 2912717586.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 15478723 + ... + 15479165.

It is an arithmetic number, because the mean of its divisors is an integer number (103123440).

Almost surely, 26857172192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6857172192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9899850240).

6857172192 is an abundant number, since it is smaller than the sum of its proper divisors (12942528288).

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

6857172192 is a wasteful number, since it uses less digits than its factorization.

6857172192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 697 counting only the distinct ones).

The product of its digits is 423360, while the sum is 48.

The square root of 6857172192 is about 82808.0442469208. The cubic root of 6857172192 is about 1899.8312123376.

The spelling of 6857172192 in words is "six billion, eight hundred fifty-seven million, one hundred seventy-two thousand, one hundred ninety-two".