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214512101 = 297396969
BaseRepresentation
bin11001100100100…
…11000111100101
3112221122100021122
430302103013211
5414403341401
633141423325
75213215466
oct1462230745
9487570248
10214512101
111000a5131
125ba0ab45
133559884b
14206bcd6d
1513c7421b
hexcc931e5

214512101 has 4 divisors (see below), whose sum is σ = 221909100. Its totient is φ = 207115104.

The previous prime is 214512073. The next prime is 214512113. The reversal of 214512101 is 101215412.

214512101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 172922500 + 41589601 = 13150^2 + 6449^2 .

It is a cyclic number.

It is not a de Polignac number, because 214512101 - 26 = 214512037 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 214512101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214512121) 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, 3698456 + ... + 3698513.

It is an arithmetic number, because the mean of its divisors is an integer number (55477275).

Almost surely, 2214512101 is an apocalyptic number.

It is an amenable number.

214512101 is a deficient number, since it is larger than the sum of its proper divisors (7396999).

214512101 is an equidigital number, since it uses as much as digits as its factorization.

214512101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7396998.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 214512101 is about 14646.2316313788. The cubic root of 214512101 is about 598.6191402225.

Adding to 214512101 its reverse (101215412), we get a palindrome (315727513).

The spelling of 214512101 in words is "two hundred fourteen million, five hundred twelve thousand, one hundred one".

Divisors: 1 29 7396969 214512101