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4202981 is a prime number
BaseRepresentation
bin10000000010000111100101
321220112101222
4100002013211
52033443411
6230030125
750503406
oct20020745
97815358
104202981
112410842
1214a8345
13b42093
147b59ad
155804db
hex4021e5

4202981 has 2 divisors, whose sum is σ = 4202982. Its totient is φ = 4202980.

The previous prime is 4202969. The next prime is 4202993. The reversal of 4202981 is 1892024.

It is a balanced prime because it is at equal distance from previous prime (4202969) and next prime (4202993).

It can be written as a sum of positive squares in only one way, i.e., 3330625 + 872356 = 1825^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202981 - 218 = 3940837 is a prime.

It is a super-2 number, since 2×42029812 = 35330098572722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4202981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4202911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2101490 + 2101491.

It is an arithmetic number, because the mean of its divisors is an integer number (2101491).

Almost surely, 24202981 is an apocalyptic number.

It is an amenable number.

4202981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4202981 is an equidigital number, since it uses as much as digits as its factorization.

4202981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4202981 is about 2050.1173137165. The cubic root of 4202981 is about 161.3810272480.

The spelling of 4202981 in words is "four million, two hundred two thousand, nine hundred eighty-one".