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8750961881 is a prime number
BaseRepresentation
bin10000010011001100…
…10001010011011001
3211120212110220221022
420021212101103121
5120410221240011
64004203252225
7426566643254
oct101146212331
924525426838
108750961881
113790765202
12184281a075
13a95cb666c
145d030a09b
153633d78db
hex2099914d9

8750961881 has 2 divisors, whose sum is σ = 8750961882. Its totient is φ = 8750961880.

The previous prime is 8750961859. The next prime is 8750961953. The reversal of 8750961881 is 1881690578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6606438400 + 2144523481 = 81280^2 + 46309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8750961881 is a prime.

It is a super-2 number, since 2×87509618812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8750961181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4375480940 + 4375480941.

It is an arithmetic number, because the mean of its divisors is an integer number (4375480941).

Almost surely, 28750961881 is an apocalyptic number.

It is an amenable number.

8750961881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8750961881 is an equidigital number, since it uses as much as digits as its factorization.

8750961881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 53.

The square root of 8750961881 is about 93546.5759982694. The cubic root of 8750961881 is about 2060.7181554428.

The spelling of 8750961881 in words is "eight billion, seven hundred fifty million, nine hundred sixty-one thousand, eight hundred eighty-one".