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1045770081 = 3348590027
BaseRepresentation
bin111110010101010…
…010111101100001
32200212210121212020
4332111102331201
54120204120311
6251434252053
734625620236
oct7625227541
92625717766
101045770081
114973455a4
12252287029
13138874185
149cc6378d
1561c22c06
hex3e552f61

1045770081 has 4 divisors (see below), whose sum is σ = 1394360112. Its totient is φ = 697180052.

The previous prime is 1045770071. The next prime is 1045770091. The reversal of 1045770081 is 1800775401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1045770071) and next prime (1045770091).

It is a cyclic number.

It is not a de Polignac number, because 1045770081 - 26 = 1045770017 is a prime.

It is a super-2 number, since 2×10457700812 = 2187270124629493122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1045770071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174295011 + ... + 174295016.

It is an arithmetic number, because the mean of its divisors is an integer number (348590028).

Almost surely, 21045770081 is an apocalyptic number.

It is an amenable number.

1045770081 is a deficient number, since it is larger than the sum of its proper divisors (348590031).

1045770081 is an equidigital number, since it uses as much as digits as its factorization.

1045770081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348590030.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1045770081 is about 32338.3685581076. The cubic root of 1045770081 is about 1015.0296709681.

The spelling of 1045770081 in words is "one billion, forty-five million, seven hundred seventy thousand, eighty-one".

Divisors: 1 3 348590027 1045770081