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1030132391 = 1760596023
BaseRepresentation
bin111101011001101…
…001001010100111
32122210101010222112
4331121221022213
54102203214031
6250115151235
734345660301
oct7531511247
92583333875
101030132391
11489534792
12248ba551b
1313555a4c2
149ab52971
156068462b
hex3d6692a7

1030132391 has 4 divisors (see below), whose sum is σ = 1090728432. Its totient is φ = 969536352.

The previous prime is 1030132379. The next prime is 1030132399. The reversal of 1030132391 is 1932310301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1932310301 = 8323280847.

It is a cyclic number.

It is not a de Polignac number, because 1030132391 - 214 = 1030116007 is a prime.

It is a super-2 number, since 2×10301323912 = 2122345485974753762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030132399) 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, 30297995 + ... + 30298028.

It is an arithmetic number, because the mean of its divisors is an integer number (272682108).

Almost surely, 21030132391 is an apocalyptic number.

1030132391 is a deficient number, since it is larger than the sum of its proper divisors (60596041).

1030132391 is an equidigital number, since it uses as much as digits as its factorization.

1030132391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60596040.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1030132391 is about 32095.6755809875. The cubic root of 1030132391 is about 1009.9449014154.

Adding to 1030132391 its reverse (1932310301), we get a palindrome (2962442692).

The spelling of 1030132391 in words is "one billion, thirty million, one hundred thirty-two thousand, three hundred ninety-one".

Divisors: 1 17 60596023 1030132391