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214226431 = 1674492857
BaseRepresentation
bin11001100010011…
…01010111111111
3112221002211102021
430301031113333
5414320221211
633131341011
75210615566
oct1461152777
9487084367
10214226431
11aaa1a541
125b8b1767
13354c8803
1420646bdd
1513c19771
hexcc4d5ff

214226431 has 8 divisors (see below), whose sum is σ = 216064800. Its totient is φ = 212395008.

The previous prime is 214226377. The next prime is 214226437. The reversal of 214226431 is 134622412.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 214226431 - 27 = 214226303 is a prime.

It is a super-2 number, since 2×2142264312 = 91785927477995522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214226396 and 214226405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214226437) 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, 73555 + ... + 76411.

It is an arithmetic number, because the mean of its divisors is an integer number (27008100).

Almost surely, 2214226431 is an apocalyptic number.

214226431 is a deficient number, since it is larger than the sum of its proper divisors (1838369).

214226431 is a wasteful number, since it uses less digits than its factorization.

214226431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473.

The product of its digits is 2304, while the sum is 25.

The square root of 214226431 is about 14636.4760444582. The cubic root of 214226431 is about 598.3532911996.

Adding to 214226431 its reverse (134622412), we get a palindrome (348848843).

The spelling of 214226431 in words is "two hundred fourteen million, two hundred twenty-six thousand, four hundred thirty-one".

Divisors: 1 167 449 2857 74983 477119 1282793 214226431