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214300031 = 11192274517
BaseRepresentation
bin11001100010111…
…11010101111111
3112221020120101012
430301133111333
5414330100111
633133105435
75211343301
oct1461372577
9487216335
10214300031
11aaa6a870
125b92827b
133552316a
1420665971
1513c3148b
hexcc5f57f

214300031 has 16 divisors (see below), whose sum is σ = 247224960. Its totient is φ = 183710880.

The previous prime is 214300019. The next prime is 214300033. The reversal of 214300031 is 130003412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-214300031 is a prime.

It is a super-2 number, since 2×2143000312 = 91849006573201922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214299979 and 214300015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214300033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45185 + ... + 49701.

It is an arithmetic number, because the mean of its divisors is an integer number (15451560).

Almost surely, 2214300031 is an apocalyptic number.

214300031 is a deficient number, since it is larger than the sum of its proper divisors (32924929).

214300031 is a wasteful number, since it uses less digits than its factorization.

214300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 214300031 is about 14638.9900949485. The cubic root of 214300031 is about 598.4218071146.

Adding to 214300031 its reverse (130003412), we get a palindrome (344303443).

The spelling of 214300031 in words is "two hundred fourteen million, three hundred thousand, thirty-one".

Divisors: 1 11 19 209 227 2497 4313 4517 47443 49687 85823 944053 1025359 11278949 19481821 214300031