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1042131023 = 1237784199
BaseRepresentation
bin111110000111011…
…010100001001111
32200121221202000022
4332013122201033
54113241143043
6251224252355
734552652603
oct7607324117
92617852008
101042131023
1149528a50a
122510110bb
13137b9b99b
149c597503
1561754868
hex3e1da84f

1042131023 has 4 divisors (see below), whose sum is σ = 1042227600. Its totient is φ = 1042034448.

The previous prime is 1042131001. The next prime is 1042131073. The reversal of 1042131023 is 3201312401.

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.

It is a cyclic number.

It is not a de Polignac number, because 1042131023 - 222 = 1037936719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042130992 and 1042131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042131073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29723 + ... + 54476.

It is an arithmetic number, because the mean of its divisors is an integer number (260556900).

Almost surely, 21042131023 is an apocalyptic number.

1042131023 is a deficient number, since it is larger than the sum of its proper divisors (96577).

1042131023 is an equidigital number, since it uses as much as digits as its factorization.

1042131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96576.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1042131023 is about 32282.0541942423. The cubic root of 1042131023 is about 1013.8509400327.

Adding to 1042131023 its reverse (3201312401), we get a palindrome (4243443424).

The spelling of 1042131023 in words is "one billion, forty-two million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 12377 84199 1042131023