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214028131 = 748928579
BaseRepresentation
bin11001100000111…
…00111101100011
3112220201202101211
430300130331203
5414242400011
633123210551
75206131502
oct1460347543
9486652354
10214028131
11aa8a4559
125b816a57
1335459485
14205d4839
1513bcab21
hexcc1cf63

214028131 has 4 divisors (see below), whose sum is σ = 214064200. Its totient is φ = 213992064.

The previous prime is 214028119. The next prime is 214028153. The reversal of 214028131 is 131820412.

It is a happy number.

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 214028131 - 211 = 214026083 is a prime.

It is a super-2 number, since 2×2140281312 = 91616081718706322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214028431) 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, 6801 + ... + 21778.

It is an arithmetic number, because the mean of its divisors is an integer number (53516050).

Almost surely, 2214028131 is an apocalyptic number.

214028131 is a deficient number, since it is larger than the sum of its proper divisors (36069).

214028131 is an equidigital number, since it uses as much as digits as its factorization.

214028131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36068.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 214028131 is about 14629.7003045175. The cubic root of 214028131 is about 598.1686110822.

Adding to 214028131 its reverse (131820412), we get a palindrome (345848543).

The spelling of 214028131 in words is "two hundred fourteen million, twenty-eight thousand, one hundred thirty-one".

Divisors: 1 7489 28579 214028131