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263380441 = 162292
BaseRepresentation
bin11111011001011…
…01110111011001
3200100121010001011
433230231313121
51014411133231
642045053521
76345461002
oct1754556731
9610533034
10263380441
11125742695
12742572a1
1342748b1c
1426da01a9
15181c89b1
hexfb2ddd9

263380441 has 3 divisors (see below), whose sum is σ = 263396671. Its totient is φ = 263364212.

The previous prime is 263380399. The next prime is 263380463. The reversal of 263380441 is 144083362.

The square root of 263380441 is 16229.

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., 256928841 + 6451600 = 16029^2 + 2540^2 .

It is not a de Polignac number, because 263380441 - 211 = 263378393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263380141) 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 2 ways as a sum of consecutive naturals, for example, 8115 + ... + 24343.

Almost surely, 2263380441 is an apocalyptic number.

263380441 is the 16229-th square number.

263380441 is the 8115-th centered octagonal number.

It is an amenable number.

263380441 is a deficient number, since it is larger than the sum of its proper divisors (16230).

263380441 is an frugal number, since it uses more digits than its factorization.

263380441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32458 (or 16229 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The cubic root of 263380441 is about 641.0046404016.

The spelling of 263380441 in words is "two hundred sixty-three million, three hundred eighty thousand, four hundred forty-one".

Divisors: 1 16229 263380441