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214121131 = 724619479
BaseRepresentation
bin11001100001100…
…11101010101011
3112220220110222021
430300303222223
5414303334011
633125205311
75206666600
oct1460635253
9486813867
10214121131
11aa958414
125b860837
133548c8c3
142061a6a7
1513be8471
hexcc33aab

214121131 has 12 divisors (see below), whose sum is σ = 249646320. Its totient is φ = 183114960.

The previous prime is 214121059. The next prime is 214121179. The reversal of 214121131 is 131121412.

It is not a de Polignac number, because 214121131 - 29 = 214120619 is a prime.

It is a super-2 number, since 2×2141211312 = 91695717481438322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214121731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17850 + ... + 27328.

It is an arithmetic number, because the mean of its divisors is an integer number (20803860).

Almost surely, 2214121131 is an apocalyptic number.

214121131 is a deficient number, since it is larger than the sum of its proper divisors (35525189).

214121131 is an equidigital number, since it uses as much as digits as its factorization.

214121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954 (or 9947 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 214121131 is about 14632.8784249716. The cubic root of 214121131 is about 598.2552377405.

Adding to 214121131 its reverse (131121412), we get a palindrome (345242543).

The spelling of 214121131 in words is "two hundred fourteen million, one hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 7 49 461 3227 9479 22589 66353 464471 4369819 30588733 214121131