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1045313431 = 6727295717
BaseRepresentation
bin111110010011100…
…011011110010111
32200211221102110021
4332103203132113
54120100012211
6251420410011
734622006011
oct7623433627
92624842407
101045313431
114970634a8
122520a6907
13138744376
149cb851b1
1561b82771
hex3e4e3797

1045313431 has 8 divisors (see below), whose sum is σ = 1061489520. Its totient is φ = 1029154368.

The previous prime is 1045313413. The next prime is 1045313447. The reversal of 1045313431 is 1343135401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1045313431 - 27 = 1045313303 is a prime.

It is a super-2 number, since 2×10453134312 = 2185360338057983522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045313396 and 1045313405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045313411) 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 7 ways as a sum of consecutive naturals, for example, 179985 + ... + 185701.

It is an arithmetic number, because the mean of its divisors is an integer number (132686190).

Almost surely, 21045313431 is an apocalyptic number.

1045313431 is a deficient number, since it is larger than the sum of its proper divisors (16176089).

1045313431 is an equidigital number, since it uses as much as digits as its factorization.

1045313431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1045313431 is about 32331.3072887565. The cubic root of 1045313431 is about 1014.8819072003.

Adding to 1045313431 its reverse (1343135401), we get a palindrome (2388448832).

The spelling of 1045313431 in words is "one billion, forty-five million, three hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 67 2729 5717 182843 383039 15601693 1045313431