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214001331 = 3643110939
BaseRepresentation
bin11001100000101…
…10011010110011
3112220200101122020
430300112122303
5414241020311
633122442523
75205660405
oct1460263263
9486611566
10214001331
11aa886405
125b803443
133544a20b
14205c8b75
1513bc2c06
hexcc166b3

214001331 has 8 divisors (see below), whose sum is σ = 285781440. Its totient is φ = 142444392.

The previous prime is 214001329. The next prime is 214001341. The reversal of 214001331 is 133100412.

214001331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 214001331 - 21 = 214001329 is a prime.

It is a super-2 number, since 2×2140013312 = 91593139339543122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 214001331.

It is not an unprimeable number, because it can be changed into a prime (214001341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53541 + ... + 57398.

It is an arithmetic number, because the mean of its divisors is an integer number (35722680).

Almost surely, 2214001331 is an apocalyptic number.

214001331 is a deficient number, since it is larger than the sum of its proper divisors (71780109).

214001331 is a wasteful number, since it uses less digits than its factorization.

214001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111585.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 214001331 is about 14628.7843309005. The cubic root of 214001331 is about 598.1436430436.

Adding to 214001331 its reverse (133100412), we get a palindrome (347101743).

The spelling of 214001331 in words is "two hundred fourteen million, one thousand, three hundred thirty-one".

Divisors: 1 3 643 1929 110939 332817 71333777 214001331