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1004243423 = 1952854917
BaseRepresentation
bin111011110110111…
…000100111011111
32120222122211222212
4323312320213133
54024041242143
6243352231035
733612633251
oct7366704737
92528584885
101004243423
11475961a47
1224039b47b
131300947a1
1497533cd1
155d26d918
hex3bdb89df

1004243423 has 4 divisors (see below), whose sum is σ = 1057098360. Its totient is φ = 951388488.

The previous prime is 1004243393. The next prime is 1004243453. The reversal of 1004243423 is 3243424001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243424001 = 31310362377.

It is an interprime number because it is at equal distance from previous prime (1004243393) and next prime (1004243453).

It is a cyclic number.

It is not a de Polignac number, because 1004243423 - 214 = 1004227039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004243453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26427440 + ... + 26427477.

It is an arithmetic number, because the mean of its divisors is an integer number (264274590).

Almost surely, 21004243423 is an apocalyptic number.

1004243423 is a deficient number, since it is larger than the sum of its proper divisors (52854937).

1004243423 is an equidigital number, since it uses as much as digits as its factorization.

1004243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52854936.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1004243423 is about 31689.7999835909. The cubic root of 1004243423 is about 1001.4124782990.

Adding to 1004243423 its reverse (3243424001), we get a palindrome (4247667424).

The spelling of 1004243423 in words is "one billion, four million, two hundred forty-three thousand, four hundred twenty-three".

Divisors: 1 19 52854917 1004243423