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6989371200 = 263352729797
BaseRepresentation
bin1101000001001100…
…10101011101000000
3200001002201211211000
412200212111131000
5103303234334300
63113314252000
7335126450340
oct64046253500
920032654730
106989371200
112a67355039
121430887000
13875054106
144a4390d20
152ad919c00
hex1a0995740

6989371200 has 672 divisors, whose sum is σ = 30160569600. Its totient is φ = 1540546560.

The previous prime is 6989371189. The next prime is 6989371243. The reversal of 6989371200 is 21739896.

It is a tau number, because it is divible by the number of its divisors (672).

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

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 95 ways as a sum of consecutive naturals, for example, 8769202 + ... + 8769998.

It is an arithmetic number, because the mean of its divisors is an integer number (44881800).

Almost surely, 26989371200 is an apocalyptic number.

6989371200 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 6989371200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15080284800).

6989371200 is an abundant number, since it is smaller than the sum of its proper divisors (23171198400).

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

6989371200 is a wasteful number, since it uses less digits than its factorization.

6989371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 6989371200 is about 83602.4592939705. The cubic root of 6989371200 is about 1911.9624940852.

The spelling of 6989371200 in words is "six billion, nine hundred eighty-nine million, three hundred seventy-one thousand, two hundred".