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12494471 = 111135861
BaseRepresentation
bin101111101010…
…011010000111
3212111210012012
4233222122013
511144310341
61123444435
7211126013
oct57523207
925453165
1012494471
117064310
12422671b
1327860a2
141933543
15116c0eb
hexbea687

12494471 has 4 divisors (see below), whose sum is σ = 13630344. Its totient is φ = 11358600.

The previous prime is 12494453. The next prime is 12494479. The reversal of 12494471 is 17449421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17449421 = 111586311.

It is not a de Polignac number, because 12494471 - 210 = 12493447 is a prime.

It is a super-3 number, since 3×124944713 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12494479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567920 + ... + 567941.

It is an arithmetic number, because the mean of its divisors is an integer number (3407586).

Almost surely, 212494471 is an apocalyptic number.

12494471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12494471 is a deficient number, since it is larger than the sum of its proper divisors (1135873).

12494471 is a wasteful number, since it uses less digits than its factorization.

12494471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135872.

The product of its digits is 8064, while the sum is 32.

The square root of 12494471 is about 3534.7519007704. The cubic root of 12494471 is about 232.0452188414.

The spelling of 12494471 in words is "twelve million, four hundred ninety-four thousand, four hundred seventy-one".

Divisors: 1 11 1135861 12494471