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71954349241 = 2373199321503
BaseRepresentation
bin100001100000011010…
…0000011110010111001
320212201121210200000211
41003000310003302321
52134330303133431
653015543231121
75125044606565
oct1030064036271
9225647720024
1071954349241
1128574399635
1211b414484a1
136a292ca118
1436a83ca6a5
151d11ea72b1
hex10c0d03cb9

71954349241 has 16 divisors (see below), whose sum is σ = 76153061376. Its totient is φ = 67845862656.

The previous prime is 71954349223. The next prime is 71954349251. The reversal of 71954349241 is 14294345917.

It is a cyclic number.

It is not a de Polignac number, because 71954349241 - 27 = 71954349113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71954349211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3335496 + ... + 3356998.

It is an arithmetic number, because the mean of its divisors is an integer number (4759566336).

Almost surely, 271954349241 is an apocalyptic number.

It is an amenable number.

71954349241 is a deficient number, since it is larger than the sum of its proper divisors (4198712135).

71954349241 is a wasteful number, since it uses less digits than its factorization.

71954349241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592.

The product of its digits is 1088640, while the sum is 49.

The spelling of 71954349241 in words is "seventy-one billion, nine hundred fifty-four million, three hundred forty-nine thousand, two hundred forty-one".

Divisors: 1 23 73 1679 1993 21503 45839 145489 494569 1569719 3346247 36103537 42855479 985676017 3128449967 71954349241