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1052860849 = 1291815539
BaseRepresentation
bin111110110000010…
…110000110110001
32201101010212120021
4332300112012301
54124013021344
6252250243441
735043112105
oct7660260661
92641125507
101052860849
114a0348a37
12254726581
1313a1877b1
149db8b905
1562673b84
hex3ec161b1

1052860849 has 4 divisors (see below), whose sum is σ = 1053677680. Its totient is φ = 1052044020.

The previous prime is 1052860801. The next prime is 1052860859. The reversal of 1052860849 is 9480682501.

It is a happy number.

1052860849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9480682501 = 23412203587.

It is a cyclic number.

It is not a de Polignac number, because 1052860849 - 213 = 1052852657 is a prime.

It is a super-2 number, since 2×10528608492 = 2217031934714001602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052860859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406479 + ... + 409060.

It is an arithmetic number, because the mean of its divisors is an integer number (263419420).

Almost surely, 21052860849 is an apocalyptic number.

It is an amenable number.

1052860849 is a deficient number, since it is larger than the sum of its proper divisors (816831).

1052860849 is an equidigital number, since it uses as much as digits as its factorization.

1052860849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816830.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1052860849 is about 32447.8173225874. The cubic root of 1052860849 is about 1017.3186170209.

The spelling of 1052860849 in words is "one billion, fifty-two million, eight hundred sixty thousand, eight hundred forty-nine".

Divisors: 1 1291 815539 1052860849