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4214981 is a prime number
BaseRepresentation
bin10000000101000011000101
321221010212102
4100011003011
52034334411
6230201445
750553401
oct20050305
97833772
104214981
112419861
1214b3285
13b47694
147ba101
15583d3b
hex4050c5

4214981 has 2 divisors, whose sum is σ = 4214982. Its totient is φ = 4214980.

The previous prime is 4214971. The next prime is 4215011. The reversal of 4214981 is 1894124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2280100 + 1934881 = 1510^2 + 1391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4214981 is a prime.

It is a super-2 number, since 2×42149812 = 35532129660722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p297308 and since 4214981 and 297308 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4214971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107490 + 2107491.

It is an arithmetic number, because the mean of its divisors is an integer number (2107491).

Almost surely, 24214981 is an apocalyptic number.

It is an amenable number.

4214981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4214981 is an equidigital number, since it uses as much as digits as its factorization.

4214981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 4214981 is about 2053.0418894898. The cubic root of 4214981 is about 161.5344685158.

The spelling of 4214981 in words is "four million, two hundred fourteen thousand, nine hundred eighty-one".