Search a number
-
+
88257881 is a prime number
BaseRepresentation
bin1010100001010…
…11010101011001
320011001222001102
411100223111121
5140043223011
612431401145
72121115415
oct520532531
9204058042
1088257881
11459014a8
12256831b5
1315391cca
14ba15d45
157b3573b
hex542b559

88257881 has 2 divisors, whose sum is σ = 88257882. Its totient is φ = 88257880.

The previous prime is 88257857. The next prime is 88257937. The reversal of 88257881 is 18875288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59043856 + 29214025 = 7684^2 + 5405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88257881 is a prime.

It is a super-2 number, since 2×882578812 = 15578907117220322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88257811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44128940 + 44128941.

It is an arithmetic number, because the mean of its divisors is an integer number (44128941).

Almost surely, 288257881 is an apocalyptic number.

It is an amenable number.

88257881 is a deficient number, since it is larger than the sum of its proper divisors (1).

88257881 is an equidigital number, since it uses as much as digits as its factorization.

88257881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 286720, while the sum is 47.

The square root of 88257881 is about 9394.5665679690. The cubic root of 88257881 is about 445.2300809100.

The spelling of 88257881 in words is "eighty-eight million, two hundred fifty-seven thousand, eight hundred eighty-one".