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75012421041 = 32109152350207
BaseRepresentation
bin100010111011100010…
…1101011010110110001
321011121202002210220100
41011313011223112301
52212111134433131
654243224303013
75263610026035
oct1056705532661
9234552083810
1075012421041
11298a36131a8
1212655611a69
1370c5a34a6c
1438b85cc1c5
151e406bc7e6
hex117716b5b1

75012421041 has 24 divisors (see below), whose sum is σ = 109419298560. Its totient is φ = 49515968736.

The previous prime is 75012421039. The next prime is 75012421079. The reversal of 75012421041 is 14012421057.

It is not a de Polignac number, because 75012421041 - 21 = 75012421039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75012420996 and 75012421014.

It is not an unprimeable number, because it can be changed into a prime (75012421091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1468960 + ... + 1519166.

It is an arithmetic number, because the mean of its divisors is an integer number (4559137440).

Almost surely, 275012421041 is an apocalyptic number.

It is an amenable number.

75012421041 is a deficient number, since it is larger than the sum of its proper divisors (34406877519).

75012421041 is a wasteful number, since it uses less digits than its factorization.

75012421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51845 (or 51842 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

Adding to 75012421041 its reverse (14012421057), we get a palindrome (89024842098).

The spelling of 75012421041 in words is "seventy-five billion, twelve million, four hundred twenty-one thousand, forty-one".

Divisors: 1 3 9 109 327 981 1523 4569 13707 50207 150621 166007 451863 498021 1494063 5472563 16417689 49253067 76465261 229395783 688187349 8334713449 25004140347 75012421041