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11214477 = 333131327
BaseRepresentation
bin101010110001…
…111010001101
3210002202101000
4222301322031
510332330402
61040210513
7164215161
oct52617215
923082330
1011214477
11636a66a
123909a39
1324285b1
1416bcca1
15eb7c1c
hexab1e8d

11214477 has 16 divisors (see below), whose sum is σ = 16679680. Its totient is φ = 7446816.

The previous prime is 11214473. The next prime is 11214487. The reversal of 11214477 is 77441211.

It is not a de Polignac number, because 11214477 - 22 = 11214473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11214477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11214473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7788 + ... + 9114.

It is an arithmetic number, because the mean of its divisors is an integer number (1042480).

Almost surely, 211214477 is an apocalyptic number.

It is an amenable number.

11214477 is a deficient number, since it is larger than the sum of its proper divisors (5465203).

11214477 is a wasteful number, since it uses less digits than its factorization.

11214477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1643 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 11214477 is about 3348.8023232195. The cubic root of 11214477 is about 223.8341472668.

Adding to 11214477 its reverse (77441211), we get a palindrome (88655688).

The spelling of 11214477 in words is "eleven million, two hundred fourteen thousand, four hundred seventy-seven".

Divisors: 1 3 9 27 313 939 1327 2817 3981 8451 11943 35829 415351 1246053 3738159 11214477