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214221124430431 = 311823836954927
BaseRepresentation
bin110000101101010100111110…
…000001100110101001011111
31001002111100011111011221122121
4300231110332001212221133
5211034244330323233211
62035335454224323411
763056652110433046
oct6055247601465137
91032440144157577
10214221124430431
116229173a00a3a8
12200395a5173567
13926bc71b62471
143ac850191755d
1519b75b2c3c271
hexc2d53e066a5f

214221124430431 has 8 divisors (see below), whose sum is σ = 215171068529664. Its totient is φ = 213272854243320.

The previous prime is 214221124430399. The next prime is 214221124430447. The reversal of 214221124430431 is 134034421122412.

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 214221124430431 - 25 = 214221124430399 is a prime.

It is a super-2 number, since 2×2142211244304312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214221124434431) 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, 418221511 + ... + 418733416.

It is an arithmetic number, because the mean of its divisors is an integer number (26896383566208).

Almost surely, 2214221124430431 is an apocalyptic number.

214221124430431 is a deficient number, since it is larger than the sum of its proper divisors (949944099233).

214221124430431 is an equidigital number, since it uses as much as digits as its factorization.

214221124430431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836956061.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 214221124430431 its reverse (134034421122412), we get a palindrome (348255545552843).

The spelling of 214221124430431 in words is "two hundred fourteen trillion, two hundred twenty-one billion, one hundred twenty-four million, four hundred thirty thousand, four hundred thirty-one".

Divisors: 1 311 823 255953 836954927 260292982297 688813904921 214221124430431