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71880758001 = 3213253891677
BaseRepresentation
bin100001011110001101…
…1010101001011110001
320212112111022211211100
41002330123111023301
52134202433224001
653004354035013
75123162235063
oct1027433251361
9225474284740
1071880758001
11285368a5428
1211b20878a69
136a16ca1b00
14369c711733
151d0a7bc586
hex10bc6d52f1

71880758001 has 36 divisors (see below), whose sum is σ = 114550305948. Its totient is φ = 43399654272.

The previous prime is 71880757987. The next prime is 71880758023. The reversal of 71880758001 is 10085708817.

It can be written as a sum of positive squares in 6 ways, for example, as 70157376 + 71810600625 = 8376^2 + 267975^2 .

It is not a de Polignac number, because 71880758001 - 25 = 71880757969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71880756001) 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 35 ways as a sum of consecutive naturals, for example, 365226 + ... + 526451.

It is an arithmetic number, because the mean of its divisors is an integer number (3181952943).

Almost surely, 271880758001 is an apocalyptic number.

It is an amenable number.

71880758001 is a deficient number, since it is larger than the sum of its proper divisors (42669547947).

71880758001 is a wasteful number, since it uses less digits than its factorization.

71880758001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891762 (or 891746 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The spelling of 71880758001 in words is "seventy-one billion, eight hundred eighty million, seven hundred fifty-eight thousand, one".

Divisors: 1 3 9 13 39 53 117 159 169 477 507 689 1521 2067 6201 8957 26871 80613 891677 2675031 8025093 11591801 34775403 47258881 104326209 141776643 150693413 425329929 452080239 614365453 1356240717 1843096359 5529289077 7986750889 23960252667 71880758001