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10442345431 = 71491763633
BaseRepresentation
bin10011011100110100…
…11000101111010111
3222221202010002222111
421232122120233113
5132341220023211
64444103411451
7516525320530
oct115632305727
928852102874
1010442345431
114479482751
122035153b87
13ca553702b
14710bcb687
15411b38421
hex26e698bd7

10442345431 has 4 divisors (see below), whose sum is σ = 11934109072. Its totient is φ = 8950581792.

The previous prime is 10442345411. The next prime is 10442345467. The reversal of 10442345431 is 13454324401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10442345431 - 211 = 10442343383 is a prime.

It is a super-2 number, since 2×104423454312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10442345393 and 10442345402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10442345411) 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, 745881810 + ... + 745881823.

It is an arithmetic number, because the mean of its divisors is an integer number (2983527268).

Almost surely, 210442345431 is an apocalyptic number.

10442345431 is a deficient number, since it is larger than the sum of its proper divisors (1491763641).

10442345431 is an equidigital number, since it uses as much as digits as its factorization.

10442345431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491763640.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 10442345431 its reverse (13454324401), we get a palindrome (23896669832).

The spelling of 10442345431 in words is "ten billion, four hundred forty-two million, three hundred forty-five thousand, four hundred thirty-one".

Divisors: 1 7 1491763633 10442345431