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11438441 = 729367
BaseRepresentation
bin101011101000…
…100101101001
3210112010120222
4223220211221
510412012231
61045055425
7166140140
oct53504551
923463528
1011438441
116502963
1239b7575
1324a6511
14173a757
15100e27b
hexae8969

11438441 has 16 divisors (see below), whose sum is σ = 13741440. Its totient is φ = 9325008.

The previous prime is 11438431. The next prime is 11438447. The reversal of 11438441 is 14483411.

11438441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-11438441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11438441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170690 + ... + 170756.

It is an arithmetic number, because the mean of its divisors is an integer number (858840).

Almost surely, 211438441 is an apocalyptic number.

It is an amenable number.

11438441 is a deficient number, since it is larger than the sum of its proper divisors (2302999).

11438441 is an frugal number, since it uses more digits than its factorization.

11438441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 103 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 11438441 is about 3382.0764331990. The cubic root of 11438441 is about 225.3143983385.

Multiplying 11438441 by its sum of digits (26), we get a triangular number (297399466 = T24388).

The spelling of 11438441 in words is "eleven million, four hundred thirty-eight thousand, four hundred forty-one".

Divisors: 1 7 29 67 203 469 841 1943 5887 13601 24389 56347 170723 394429 1634063 11438441