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264213449 = 1964721493
BaseRepresentation
bin11111011111110…
…01001111001001
3200102011102201022
433233321033021
51020114312244
642115002225
76355530413
oct1757711711
9612142638
10264213449
11126161525
1274599375
134297b026
14271399b3
15182e06ee
hexfbf93c9

264213449 has 8 divisors (see below), whose sum is σ = 278562240. Its totient is φ = 249908976.

The previous prime is 264213413. The next prime is 264213479. The reversal of 264213449 is 944312462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264213449 - 28 = 264213193 is a prime.

It is a super-3 number, since 3×2642134493 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264213479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547 + ... + 23039.

It is an arithmetic number, because the mean of its divisors is an integer number (34820280).

Almost surely, 2264213449 is an apocalyptic number.

It is an amenable number.

264213449 is a deficient number, since it is larger than the sum of its proper divisors (14348791).

264213449 is a wasteful number, since it uses less digits than its factorization.

264213449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22159.

The product of its digits is 41472, while the sum is 35.

The square root of 264213449 is about 16254.6439210461. The cubic root of 264213449 is about 641.6797095754.

The spelling of 264213449 in words is "two hundred sixty-four million, two hundred thirteen thousand, four hundred forty-nine".

Divisors: 1 19 647 12293 21493 408367 13905971 264213449