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BaseRepresentation
bin1000001000010101101
3111112110011
41001002231
532011123
65413221
72156500
oct1010255
9445404
10266413
11172184
1210a211
1394354
146d137
1553e0d

266413 has 6 divisors (see below), whose sum is σ = 309966. Its totient is φ = 228312.

The previous prime is 266411. The next prime is 266417. The reversal of 266413 is 314662.

It can be written as a sum of positive squares in only one way, i.e., 233289 + 33124 = 483^2 + 182^2 .

It is not a de Polignac number, because 266413 - 21 = 266411 is a prime.

It is a Duffinian number.

266413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2670 + ... + 2767.

It is an arithmetic number, because the mean of its divisors is an integer number (51661).

2266413 is an apocalyptic number.

It is an amenable number.

266413 is a deficient number, since it is larger than the sum of its proper divisors (43553).

266413 is an equidigital number, since it uses as much as digits as its factorization.

266413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451 (or 5444 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 266413 is about 516.1521093631. The cubic root of 266413 is about 64.3455431260.

The spelling of 266413 in words is "two hundred sixty-six thousand, four hundred thirteen".

Divisors: 1 7 49 5437 38059 266413