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214307479 = 1911279341
BaseRepresentation
bin11001100011000…
…01001010010111
3112221020221121001
430301201022113
5414330314404
633133204131
75211404101
oct1461411227
9487227531
10214307479
11aaa75421
125b930647
1335526679
1420668571
1513c337a4
hexcc61297

214307479 has 4 divisors (see below), whose sum is σ = 225586840. Its totient is φ = 203028120.

The previous prime is 214307449. The next prime is 214307497. The reversal of 214307479 is 974703412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214307479 - 27 = 214307351 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214307449) 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 3 ways as a sum of consecutive naturals, for example, 5639652 + ... + 5639689.

It is an arithmetic number, because the mean of its divisors is an integer number (56396710).

Almost surely, 2214307479 is an apocalyptic number.

214307479 is a deficient number, since it is larger than the sum of its proper divisors (11279361).

214307479 is a wasteful number, since it uses less digits than its factorization.

214307479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11279360.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 214307479 is about 14639.2444818713. The cubic root of 214307479 is about 598.4287397532.

The spelling of 214307479 in words is "two hundred fourteen million, three hundred seven thousand, four hundred seventy-nine".

Divisors: 1 19 11279341 214307479