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2280693749 is a prime number
BaseRepresentation
bin1000011111110000…
…1001111111110101
312212221112020122212
42013330021333311
514132324144444
61014151103205
7110342401625
oct20774117765
95787466585
102280693749
11a70434a74
12537971b05
132a4675739
14178c84885
15d535b19e
hex87f09ff5

2280693749 has 2 divisors, whose sum is σ = 2280693750. Its totient is φ = 2280693748.

The previous prime is 2280693713. The next prime is 2280693781. The reversal of 2280693749 is 9473960822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1244819524 + 1035874225 = 35282^2 + 32185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2280693749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2280693697 and 2280693706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2280693049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140346874 + 1140346875.

It is an arithmetic number, because the mean of its divisors is an integer number (1140346875).

Almost surely, 22280693749 is an apocalyptic number.

It is an amenable number.

2280693749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2280693749 is an equidigital number, since it uses as much as digits as its factorization.

2280693749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 2280693749 is about 47756.6094797359. The cubic root of 2280693749 is about 1316.3023523238.

The spelling of 2280693749 in words is "two billion, two hundred eighty million, six hundred ninety-three thousand, seven hundred forty-nine".