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326886400 = 210521132
BaseRepresentation
bin10011011110111…
…110010000000000
3211210002112211201
4103132332100000
51132140331100
652234150544
711046326401
oct2336762000
9753075751
10326886400
11158578655
1291582454
1352952809
14315b19a8
151da7036a
hex137be400

326886400 has 99 divisors (see below), whose sum is σ = 817516531. Its totient is φ = 129597440.

The previous prime is 326886397. The next prime is 326886401. The reversal of 326886400 is 4688623.

The square root of 326886400 is 18080.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 166306816 + 160579584 = 12896^2 + 12672^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 326886400.

It is not an unprimeable number, because it can be changed into a prime (326886401) 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 8 ways as a sum of consecutive naturals, for example, 2892744 + ... + 2892856.

Almost surely, 2326886400 is an apocalyptic number.

326886400 is the 18080-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326886400

326886400 is an abundant number, since it is smaller than the sum of its proper divisors (490630131).

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

326886400 is an equidigital number, since it uses as much as digits as its factorization.

326886400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The cubic root of 326886400 is about 688.8620886017.

The spelling of 326886400 in words is "three hundred twenty-six million, eight hundred eighty-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 113 128 160 200 226 256 320 400 452 512 565 640 800 904 1024 1130 1280 1600 1808 2260 2560 2825 3200 3616 4520 5120 5650 6400 7232 9040 11300 12769 12800 14464 18080 22600 25538 25600 28928 36160 45200 51076 57856 63845 72320 90400 102152 115712 127690 144640 180800 204304 255380 289280 319225 361600 408608 510760 578560 638450 723200 817216 1021520 1276900 1446400 1634432 2043040 2553800 2892800 3268864 4086080 5107600 6537728 8172160 10215200 13075456 16344320 20430400 32688640 40860800 65377280 81721600 163443200 326886400