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71761895425 = 5211260952347
BaseRepresentation
bin100001011010101010…
…1111010000000000001
320212020012200000000201
41002311111322000001
52133432021123200
652544510245201
75120220022003
oct1026525720001
9225205600021
1071761895425
11284857a01a0
1211aa8ab6801
1369c848581c
14368aa10373
151d0013dc6a
hex10b557a001

71761895425 has 12 divisors (see below), whose sum is σ = 97074273456. Its totient is φ = 52190469200.

The previous prime is 71761895411. The next prime is 71761895437. The reversal of 71761895425 is 52459816717.

It is not a de Polignac number, because 71761895425 - 225 = 71728340993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130475899 + ... + 130476448.

It is an arithmetic number, because the mean of its divisors is an integer number (8089522788).

Almost surely, 271761895425 is an apocalyptic number.

It is an amenable number.

71761895425 is a deficient number, since it is larger than the sum of its proper divisors (25312378031).

71761895425 is a wasteful number, since it uses less digits than its factorization.

71761895425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260952368 (or 260952363 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 55.

The spelling of 71761895425 in words is "seventy-one billion, seven hundred sixty-one million, eight hundred ninety-five thousand, four hundred twenty-five".

Divisors: 1 5 11 25 55 275 260952347 1304761735 2870475817 6523808675 14352379085 71761895425