Search a number
-
+
71312546201 = 1322343426661
BaseRepresentation
bin100001001101010001…
…1110001100110011001
320211001220010200202212
41002122203301212121
52132022002434301
652432135204505
75103122432651
oct1023243614631
9224056120685
1071312546201
11282750894a6
12119a2516735
136956356100
143647081361
151cc597d4bb
hex109a8f1999

71312546201 has 24 divisors (see below), whose sum is σ = 82451578176. Its totient is φ = 61500479040.

The previous prime is 71312546197. The next prime is 71312546219. The reversal of 71312546201 is 10264521317.

It is not a de Polignac number, because 71312546201 - 22 = 71312546197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71312542201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46190 + ... + 380471.

It is an arithmetic number, because the mean of its divisors is an integer number (3435482424).

Almost surely, 271312546201 is an apocalyptic number.

It is an amenable number.

71312546201 is a deficient number, since it is larger than the sum of its proper divisors (11139031975).

71312546201 is a wasteful number, since it uses less digits than its factorization.

71312546201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426753 (or 426740 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 71312546201 in words is "seventy-one billion, three hundred twelve million, five hundred forty-six thousand, two hundred one".

Divisors: 1 13 23 43 169 299 559 989 3887 7267 12857 167141 426661 5546593 9813203 18346423 72105709 127571639 238503499 421967729 1658431307 3100545487 5485580477 71312546201