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1030123001 = 1576561293
BaseRepresentation
bin111101011001100…
…110110111111001
32122210100200002202
4331121212313321
54102202414001
6250115035545
734345621025
oct7531466771
92583320082
101030123001
11489528726
12248b9bbb5
1313555614b
149ab4d385
156068196b
hex3d666df9

1030123001 has 4 divisors (see below), whose sum is σ = 1036684452. Its totient is φ = 1023561552.

The previous prime is 1030122997. The next prime is 1030123013. The reversal of 1030123001 is 1003210301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 521665600 + 508457401 = 22840^2 + 22549^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030123001 - 22 = 1030122997 is a prime.

It is a super-2 number, since 2×10301230012 = 2122306794378492002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030123201) 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, 3280490 + ... + 3280803.

It is an arithmetic number, because the mean of its divisors is an integer number (259171113).

Almost surely, 21030123001 is an apocalyptic number.

It is an amenable number.

1030123001 is a deficient number, since it is larger than the sum of its proper divisors (6561451).

1030123001 is an equidigital number, since it uses as much as digits as its factorization.

1030123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561450.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1030123001 is about 32095.5292992653. The cubic root of 1030123001 is about 1009.9418327446.

Adding to 1030123001 its reverse (1003210301), we get a palindrome (2033333302).

The spelling of 1030123001 in words is "one billion, thirty million, one hundred twenty-three thousand, one".

Divisors: 1 157 6561293 1030123001