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479303449 = 218932
BaseRepresentation
bin11100100100011…
…001011100011001
31020101220010201121
4130210121130121
51440200202244
6115321045241
714610004102
oct3444313431
91211803647
10479303449
11226610859
12114626821
13783b9911
14479293a9
152c12ac84
hex1c919719

479303449 has 3 divisors (see below), whose sum is σ = 479325343. Its totient is φ = 479281556.

The previous prime is 479303437. The next prime is 479303471. The reversal of 479303449 is 944303974.

The square root of 479303449 is 21893.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 361190025 + 118113424 = 19005^2 + 10868^2 .

It is not a de Polignac number, because 479303449 - 221 = 477206297 is a prime.

It is a super-3 number, since 3×4793034493 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479303249) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10947 + ... + 32839.

Almost surely, 2479303449 is an apocalyptic number.

479303449 is the 21893-rd square number.

479303449 is the 10947-th centered octagonal number.

It is an amenable number.

479303449 is a deficient number, since it is larger than the sum of its proper divisors (21894).

479303449 is an frugal number, since it uses more digits than its factorization.

479303449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43786 (or 21893 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The cubic root of 479303449 is about 782.5946080835.

The spelling of 479303449 in words is "four hundred seventy-nine million, three hundred three thousand, four hundred forty-nine".

Divisors: 1 21893 479303449