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1320023282 = 2660011641
BaseRepresentation
bin100111010101101…
…1111010011110010
310101222212010112012
41032223133103302
510200411221112
6334552402522
744466004244
oct11653372362
93358763465
101320023282
11618134036
1230a0a6442
13180628b86
14c7454094
157ad48022
hex4eadf4f2

1320023282 has 4 divisors (see below), whose sum is σ = 1980034926. Its totient is φ = 660011640.

The previous prime is 1320023281. The next prime is 1320023377. The reversal of 1320023282 is 2823200231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2823200231 = 6146281971.

It can be written as a sum of positive squares in only one way, i.e., 1308196561 + 11826721 = 36169^2 + 3439^2 .

It is a super-2 number, since 2×13200232822 = 3484922930044103048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320023281) 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 as a sum of consecutive naturals, namely, 330005819 + ... + 330005822.

Almost surely, 21320023282 is an apocalyptic number.

1320023282 is a deficient number, since it is larger than the sum of its proper divisors (660011644).

1320023282 is an equidigital number, since it uses as much as digits as its factorization.

1320023282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660011643.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1320023282 is about 36332.1246557368. The cubic root of 1320023282 is about 1096.9677598055.

The spelling of 1320023282 in words is "one billion, three hundred twenty million, twenty-three thousand, two hundred eighty-two".

Divisors: 1 2 660011641 1320023282