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1030421031 = 3379906263
BaseRepresentation
bin111101011010101…
…111101000100111
32122210220210220220
4331122233220213
54102241433111
6250125255423
734351301643
oct7532575047
92583823826
101030421031
11489711632
12249104573
1313562b9b3
149abc9c23
15606dee06
hex3d6afa27

1030421031 has 8 divisors (see below), whose sum is σ = 1377521280. Its totient is φ = 685134072.

The previous prime is 1030421027. The next prime is 1030421047. The reversal of 1030421031 is 1301240301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1030421031 - 22 = 1030421027 is a prime.

It is a super-2 number, since 2×10304210312 = 2123535002254205922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030421031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030421081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451995 + ... + 454268.

It is an arithmetic number, because the mean of its divisors is an integer number (172190160).

Almost surely, 21030421031 is an apocalyptic number.

1030421031 is a deficient number, since it is larger than the sum of its proper divisors (347100249).

1030421031 is an equidigital number, since it uses as much as digits as its factorization.

1030421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906645.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1030421031 is about 32100.1718219701. The cubic root of 1030421031 is about 1010.0392204487.

Adding to 1030421031 its reverse (1301240301), we get a palindrome (2331661332).

The spelling of 1030421031 in words is "one billion, thirty million, four hundred twenty-one thousand, thirty-one".

Divisors: 1 3 379 1137 906263 2718789 343473677 1030421031