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1031032421042 = 21339655093117
BaseRepresentation
bin11110000000011100101…
…00100011101010110010
310122120021102101202021112
433000032110203222302
5113343023244433132
62105352202553322
7134326641656531
oct17001624435262
93576242352245
101031032421042
11368292a17158
121479a2808842
13762c250ca60
1437c8ba3c318
151bc45d27ab2
hexf00e523ab2

1031032421042 has 8 divisors (see below), whose sum is σ = 1665513910956. Its totient is φ = 475861117392.

The previous prime is 1031032421011. The next prime is 1031032421047. The reversal of 1031032421042 is 2401242301301.

It can be written as a sum of positive squares in 2 ways, for example, as 754481594881 + 276550826161 = 868609^2 + 525881^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1031032420999 and 1031032421017.

It is not an unprimeable number, because it can be changed into a prime (1031032421047) 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, 19827546533 + ... + 19827546584.

Almost surely, 21031032421042 is an apocalyptic number.

1031032421042 is a deficient number, since it is larger than the sum of its proper divisors (634481489914).

1031032421042 is a wasteful number, since it uses less digits than its factorization.

1031032421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39655093132.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1031032421042 its reverse (2401242301301), we get a palindrome (3432274722343).

The spelling of 1031032421042 in words is "one trillion, thirty-one billion, thirty-two million, four hundred twenty-one thousand, forty-two".

Divisors: 1 2 13 26 39655093117 79310186234 515516210521 1031032421042