Search a number
-
+
465562381 is a prime number
BaseRepresentation
bin11011101111111…
…110101100001101
31012110001000112011
4123233332230031
51423140444011
6114110341221
714352133504
oct3357765415
91173030464
10465562381
112198859a9
1210baba811
13755b82cb
1445b8d83b
152ad14621
hex1bbfeb0d

465562381 has 2 divisors, whose sum is σ = 465562382. Its totient is φ = 465562380.

The previous prime is 465562313. The next prime is 465562387. The reversal of 465562381 is 183265564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417384900 + 48177481 = 20430^2 + 6941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-465562381 is a prime.

It is a super-2 number, since 2×4655623812 = 433496661204778322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465562387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232781190 + 232781191.

It is an arithmetic number, because the mean of its divisors is an integer number (232781191).

Almost surely, 2465562381 is an apocalyptic number.

It is an amenable number.

465562381 is a deficient number, since it is larger than the sum of its proper divisors (1).

465562381 is an equidigital number, since it uses as much as digits as its factorization.

465562381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 465562381 is about 21576.8946097440. The cubic root of 465562381 is about 775.0432891532.

The spelling of 465562381 in words is "four hundred sixty-five million, five hundred sixty-two thousand, three hundred eighty-one".