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42131271032 = 2324175728867
BaseRepresentation
bin100111001111001110…
…000010110101111000
311000202012102022201122
4213033032002311320
51142241101133112
631204351204412
73021023615654
oct471716026570
9130665368648
1042131271032
1116960005564
1281b9816708
133c8579ba96
142079677a64
151168b79872
hex9cf382d78

42131271032 has 32 divisors (see below), whose sum is σ = 79431456720. Its totient is φ = 20949788160.

The previous prime is 42131271031. The next prime is 42131271067. The reversal of 42131271032 is 23017213124.

It is a junction number, because it is equal to n+sod(n) for n = 42131270992 and 42131271010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131271031) 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, 1445063 + ... + 1473929.

Almost surely, 242131271032 is an apocalyptic number.

It is an amenable number.

42131271032 is a deficient number, since it is larger than the sum of its proper divisors (37300185688).

42131271032 is a wasteful number, since it uses less digits than its factorization.

42131271032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29871 (or 29867 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 42131271032 its reverse (23017213124), we get a palindrome (65148484156).

The spelling of 42131271032 in words is "forty-two billion, one hundred thirty-one million, two hundred seventy-one thousand, thirty-two".

Divisors: 1 2 4 8 241 482 757 964 1514 1928 3028 6056 28867 57734 115468 182437 230936 364874 729748 1459496 6956947 13913894 21852319 27827788 43704638 55655576 87409276 174818552 5266408879 10532817758 21065635516 42131271032