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20014331 is a prime number
BaseRepresentation
bin100110001011…
…0010011111011
31101122211111112
41030112103323
520110424311
61552550535
7332055551
oct114262373
941584445
1020014331
1110330077
12685244b
1341b9acc
14292dbd1
151b5528b
hex13164fb

20014331 has 2 divisors, whose sum is σ = 20014332. Its totient is φ = 20014330.

The previous prime is 20014279. The next prime is 20014349. The reversal of 20014331 is 13341002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20014331 is a prime.

It is a super-2 number, since 2×200143312 = 801146890755122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20014381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007165 + 10007166.

It is an arithmetic number, because the mean of its divisors is an integer number (10007166).

Almost surely, 220014331 is an apocalyptic number.

20014331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014331 is an equidigital number, since it uses as much as digits as its factorization.

20014331 is an evil number, because the sum of its binary digits is even.

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

The square root of 20014331 is about 4473.7379225878. The cubic root of 20014331 is about 271.5065800449.

Adding to 20014331 its reverse (13341002), we get a palindrome (33355333).

The spelling of 20014331 in words is "twenty million, fourteen thousand, three hundred thirty-one".