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1045361431 = 23107424771
BaseRepresentation
bin111110010011101…
…111001100010111
32200212000212022001
4332103233030113
54120103031211
6251421420131
734622265652
oct7623571427
92625025261
101045361431
11497096574
1225210a647
1313876017a
149cb98899
1561b91ac1
hex3e4ef317

1045361431 has 8 divisors (see below), whose sum is σ = 1101009024. Its totient is φ = 990563640.

The previous prime is 1045361423. The next prime is 1045361441. The reversal of 1045361431 is 1341635401.

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 1045361431 - 23 = 1045361423 is a prime.

It is a super-2 number, since 2×10453614312 = 2185561042844735522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045361431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045361441) 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, 209925 + ... + 214846.

It is an arithmetic number, because the mean of its divisors is an integer number (137626128).

Almost surely, 21045361431 is an apocalyptic number.

1045361431 is a deficient number, since it is larger than the sum of its proper divisors (55647593).

1045361431 is a wasteful number, since it uses less digits than its factorization.

1045361431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424901.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1045361431 is about 32332.0495947906. The cubic root of 1045361431 is about 1014.8974411651.

Adding to 1045361431 its reverse (1341635401), we get a palindrome (2386996832).

The spelling of 1045361431 in words is "one billion, forty-five million, three hundred sixty-one thousand, four hundred thirty-one".

Divisors: 1 23 107 2461 424771 9769733 45450497 1045361431