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1030816349 = 2262145569
BaseRepresentation
bin111101011100010…
…000001001011101
32122211122220012022
4331130100021131
54102342110344
6250141545525
734354536323
oct7534201135
92584586168
101030816349
11489961642
122492752a5
13135739904
149ac8dd13
156076c0ee
hex3d71025d

1030816349 has 4 divisors (see below), whose sum is σ = 1030884540. Its totient is φ = 1030748160.

The previous prime is 1030816343. The next prime is 1030816387. The reversal of 1030816349 is 9436180301.

1030816349 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9436180301 = 26539355559.

It can be written as a sum of positive squares in 2 ways, for example, as 993825625 + 36990724 = 31525^2 + 6082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030816349 - 24 = 1030816333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030816343) 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, 164 + ... + 45405.

It is an arithmetic number, because the mean of its divisors is an integer number (257721135).

Almost surely, 21030816349 is an apocalyptic number.

It is an amenable number.

1030816349 is a deficient number, since it is larger than the sum of its proper divisors (68191).

1030816349 is an equidigital number, since it uses as much as digits as its factorization.

1030816349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68190.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1030816349 is about 32106.3287997865. The cubic root of 1030816349 is about 1010.1683701269.

The spelling of 1030816349 in words is "one billion, thirty million, eight hundred sixteen thousand, three hundred forty-nine".

Divisors: 1 22621 45569 1030816349