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1320149466 = 23273341637
BaseRepresentation
bin100111010101111…
…1110000111011010
310102000002112121200
41032223332013122
510200424240331
6334555215030
744500041156
oct11653760732
93360075550
101320149466
1161820a919
1230a147476
1318067143c
14c7488066
157ad705e6
hex4eafe1da

1320149466 has 12 divisors (see below), whose sum is σ = 2860323882. Its totient is φ = 440049816.

The previous prime is 1320149461. The next prime is 1320149471. The reversal of 1320149466 is 6649410231.

It is an interprime number because it is at equal distance from previous prime (1320149461) and next prime (1320149471).

It can be written as a sum of positive squares in only one way, i.e., 1089990225 + 230159241 = 33015^2 + 15171^2 .

It is a super-2 number, since 2×13201494662 = 3485589225160170312, 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 1320149466.

It is not an unprimeable number, because it can be changed into a prime (1320149461) 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 5 ways as a sum of consecutive naturals, for example, 36670801 + ... + 36670836.

Almost surely, 21320149466 is an apocalyptic number.

1320149466 is an abundant number, since it is smaller than the sum of its proper divisors (1540174416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320149466 is a wasteful number, since it uses less digits than its factorization.

1320149466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73341645 (or 73341642 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1320149466 is about 36333.8611490714. The cubic root of 1320149466 is about 1097.0027125651.

Adding to 1320149466 its reverse (6649410231), we get a palindrome (7969559697).

The spelling of 1320149466 in words is "one billion, three hundred twenty million, one hundred forty-nine thousand, four hundred sixty-six".

Divisors: 1 2 3 6 9 18 73341637 146683274 220024911 440049822 660074733 1320149466