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6872397 = 37246751
BaseRepresentation
bin11010001101110101001101
3110221011011020
4122031311031
53224404042
6403144353
7112262100
oct32156515
913834136
106872397
113974374
1223750b9
13156810c
14cac737
1590b3ec
hex68dd4d

6872397 has 12 divisors (see below), whose sum is σ = 10659456. Its totient is φ = 3927000.

The previous prime is 6872381. The next prime is 6872419. The reversal of 6872397 is 7932786.

It is not a de Polignac number, because 6872397 - 24 = 6872381 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6872197) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 23229 + ... + 23522.

It is an arithmetic number, because the mean of its divisors is an integer number (888288).

Almost surely, 26872397 is an apocalyptic number.

It is an amenable number.

6872397 is a deficient number, since it is larger than the sum of its proper divisors (3787059).

6872397 is a wasteful number, since it uses less digits than its factorization.

6872397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46768 (or 46761 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 6872397 is about 2621.5257008086. The cubic root of 6872397 is about 190.1236222263.

The spelling of 6872397 in words is "six million, eight hundred seventy-two thousand, three hundred ninety-seven".

Divisors: 1 3 7 21 49 147 46751 140253 327257 981771 2290799 6872397