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1331230046 = 2665615023
BaseRepresentation
bin100111101011000…
…1111010101011110
310102202221111022112
41033112033111132
510211243330141
6340032514022
744663161106
oct11726172536
93382844275
101331230046
11623498923
123119ab912
13182a50ab3
14c8b30206
157bd0d7eb
hex4f58f55e

1331230046 has 4 divisors (see below), whose sum is σ = 1996845072. Its totient is φ = 665615022.

The previous prime is 1331230031. The next prime is 1331230051. The reversal of 1331230046 is 6400321331.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 332807510 + ... + 332807513.

It is an arithmetic number, because the mean of its divisors is an integer number (499211268).

Almost surely, 21331230046 is an apocalyptic number.

1331230046 is a deficient number, since it is larger than the sum of its proper divisors (665615026).

1331230046 is an equidigital number, since it uses as much as digits as its factorization.

1331230046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665615025.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1331230046 is about 36486.0253521811. The cubic root of 1331230046 is about 1100.0633699030.

Adding to 1331230046 its reverse (6400321331), we get a palindrome (7731551377).

The spelling of 1331230046 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, forty-six".

Divisors: 1 2 665615023 1331230046