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326247968 = 253121032
BaseRepresentation
bin10011011100100…
…010011000100000
3211201220010002002
4103130202120200
51132004413333
652212343132
711041030154
oct2334423040
9751803062
10326247968
11158181a22
1291314aa8
135278b047
1431487064
151d9960e8
hex13722620

326247968 has 54 divisors (see below), whose sum is σ = 670194567. Its totient is φ = 156329280.

The previous prime is 326247967. The next prime is 326247973. The reversal of 326247968 is 869742623.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 163123984 + 163123984 = 12772^2 + 12772^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=12772.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326247967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3167405 + ... + 3167507.

Almost surely, 2326247968 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 326247968

326247968 is an abundant number, since it is smaller than the sum of its proper divisors (343946599).

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

326247968 is an equidigital number, since it uses as much as digits as its factorization.

326247968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 136 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 326247968 is about 18062.3356186292. The cubic root of 326247968 is about 688.4133310449.

The spelling of 326247968 in words is "three hundred twenty-six million, two hundred forty-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 31 32 62 103 124 206 248 412 496 824 961 992 1648 1922 3193 3296 3844 6386 7688 10609 12772 15376 21218 25544 30752 42436 51088 84872 98983 102176 169744 197966 328879 339488 395932 657758 791864 1315516 1583728 2631032 3167456 5262064 10195249 10524128 20390498 40780996 81561992 163123984 326247968