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214420369 is a prime number
BaseRepresentation
bin11001100011111…
…00101110010001
3112221110200110011
430301330232101
5414342422434
633135434521
75212354162
oct1461745621
9487420404
10214420369
11100042219
125b985a41
1335565b77
1420697769
1513c56e64
hexcc7cb91

214420369 has 2 divisors, whose sum is σ = 214420370. Its totient is φ = 214420368.

The previous prime is 214420357. The next prime is 214420373. The reversal of 214420369 is 963024412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205492225 + 8928144 = 14335^2 + 2988^2 .

It is a cyclic number.

It is not a de Polignac number, because 214420369 - 29 = 214419857 is a prime.

It is a super-2 number, since 2×2144203692 = 91952189284192322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 214420369.

It is not a weakly prime, because it can be changed into another prime (214420309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107210184 + 107210185.

It is an arithmetic number, because the mean of its divisors is an integer number (107210185).

Almost surely, 2214420369 is an apocalyptic number.

It is an amenable number.

214420369 is a deficient number, since it is larger than the sum of its proper divisors (1).

214420369 is an equidigital number, since it uses as much as digits as its factorization.

214420369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 214420369 is about 14643.0997060049. The cubic root of 214420369 is about 598.5337987118.

The spelling of 214420369 in words is "two hundred fourteen million, four hundred twenty thousand, three hundred sixty-nine".