Search a number
-
+
214105331 = 1123383537
BaseRepresentation
bin11001100001011…
…11110011110011
3112220212200022002
430300233303303
5414302332311
633125004215
75206602536
oct1460576363
9486780262
10214105331
11aa947560
125b85366b
133548565b
1420614a1d
1513be393b
hexcc2fcf3

214105331 has 8 divisors (see below), whose sum is σ = 234574704. Its totient is φ = 193803520.

The previous prime is 214105279. The next prime is 214105337. The reversal of 214105331 is 133501412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214105331 is a prime.

It is a super-2 number, since 2×2141053312 = 91682185525239122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214105337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39206 + ... + 44331.

It is an arithmetic number, because the mean of its divisors is an integer number (29321838).

Almost surely, 2214105331 is an apocalyptic number.

214105331 is a deficient number, since it is larger than the sum of its proper divisors (20469373).

214105331 is a wasteful number, since it uses less digits than its factorization.

214105331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83781.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 214105331 is about 14632.3385349028. The cubic root of 214105331 is about 598.2405222923.

Adding to 214105331 its reverse (133501412), we get a palindrome (347606743).

The spelling of 214105331 in words is "two hundred fourteen million, one hundred five thousand, three hundred thirty-one".

Divisors: 1 11 233 2563 83537 918907 19464121 214105331