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1022313023 = 2580139623
BaseRepresentation
bin111100111011110…
…100001000111111
32122020122212211022
4330323310020333
54043203004043
6245235414355
734222342304
oct7473641077
92566585738
101022313023
114850839a6
122464543bb
13133a50364
1499ab90ab
155eb3c868
hex3cef423f

1022313023 has 4 divisors (see below), whose sum is σ = 1022378448. Its totient is φ = 1022247600.

The previous prime is 1022312999. The next prime is 1022313041. The reversal of 1022313023 is 3203132201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3203132201 = 24623130087.

It is a cyclic number.

It is not a de Polignac number, because 1022313023 - 224 = 1005535807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022312992 and 1022313010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022313073) 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 3 ways as a sum of consecutive naturals, for example, 5990 + ... + 45612.

It is an arithmetic number, because the mean of its divisors is an integer number (255594612).

Almost surely, 21022313023 is an apocalyptic number.

1022313023 is a deficient number, since it is larger than the sum of its proper divisors (65425).

1022313023 is an equidigital number, since it uses as much as digits as its factorization.

1022313023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65424.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1022313023 is about 31973.6301192092. The cubic root of 1022313023 is about 1007.3830310384.

Adding to 1022313023 its reverse (3203132201), we get a palindrome (4225445224).

The spelling of 1022313023 in words is "one billion, twenty-two million, three hundred thirteen thousand, twenty-three".

Divisors: 1 25801 39623 1022313023