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320249341 = 479668579
BaseRepresentation
bin10011000101101…
…001110111111101
3211022121100111201
4103011221313331
51123440434331
651440015501
710636034356
oct2305516775
9738540451
10320249341
11154855085
128b301591
135146a869
1430764d2d
151d1ada61
hex13169dfd

320249341 has 4 divisors (see below), whose sum is σ = 320918400. Its totient is φ = 319580284.

The previous prime is 320249327. The next prime is 320249353. The reversal of 320249341 is 143942023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320249341 - 213 = 320241149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320249311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333811 + ... + 334768.

It is an arithmetic number, because the mean of its divisors is an integer number (80229600).

Almost surely, 2320249341 is an apocalyptic number.

It is an amenable number.

320249341 is a deficient number, since it is larger than the sum of its proper divisors (669059).

320249341 is an equidigital number, since it uses as much as digits as its factorization.

320249341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669058.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 320249341 is about 17895.5117557448. The cubic root of 320249341 is about 684.1679855124.

The spelling of 320249341 in words is "three hundred twenty million, two hundred forty-nine thousand, three hundred forty-one".

Divisors: 1 479 668579 320249341