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8751501049 is a prime number
BaseRepresentation
bin10000010011010000…
…10100111011111001
3211120220111022112111
420021220110323321
5120410341013144
64004223012321
7426604350214
oct101150247371
924526438474
108751501049
113790aa32a5
121842a3a0a1
13a96144bb5
145d040a77b
15363492534
hex209a14ef9

8751501049 has 2 divisors, whose sum is σ = 8751501050. Its totient is φ = 8751501048.

The previous prime is 8751501047. The next prime is 8751501089. The reversal of 8751501049 is 9401051578.

It is a happy number.

It is an a-pointer prime, because the next prime (8751501089) can be obtained adding 8751501049 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5289943824 + 3461557225 = 72732^2 + 58835^2 .

It is a cyclic number.

It is not a de Polignac number, because 8751501049 - 21 = 8751501047 is a prime.

It is a super-2 number, since 2×87515010492 (a number of 21 digits) contains 22 as substring.

Together with 8751501047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8751501041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4375750524 + 4375750525.

It is an arithmetic number, because the mean of its divisors is an integer number (4375750525).

Almost surely, 28751501049 is an apocalyptic number.

It is an amenable number.

8751501049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8751501049 is an equidigital number, since it uses as much as digits as its factorization.

8751501049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 8751501049 is about 93549.4577696739. The cubic root of 8751501049 is about 2060.7604765226.

The spelling of 8751501049 in words is "eight billion, seven hundred fifty-one million, five hundred one thousand, forty-nine".