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76115220481 = 418431819067
BaseRepresentation
bin100011011100011010…
…0100001100000000001
321021110121012211100001
41012320310201200001
52221340444023411
654544501200001
75333130461536
oct1067064414001
9237417184301
1076115220481
112a30a06a7a3
1212902a00001
137240355a01
143980c58d8d
151ea7407dc1
hex11b8d21801

76115220481 has 4 divisors (see below), whose sum is σ = 76117081392. Its totient is φ = 76113359572.

The previous prime is 76115220463. The next prime is 76115220523. The reversal of 76115220481 is 18402251167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76115220481 - 25 = 76115220449 is a prime.

It is a super-2 number, since 2×761152204812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76115220481.

It is not an unprimeable number, because it can be changed into a prime (76115220451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867691 + ... + 951376.

It is an arithmetic number, because the mean of its divisors is an integer number (19029270348).

Almost surely, 276115220481 is an apocalyptic number.

It is an amenable number.

76115220481 is a deficient number, since it is larger than the sum of its proper divisors (1860911).

76115220481 is a wasteful number, since it uses less digits than its factorization.

76115220481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860910.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 76115220481 in words is "seventy-six billion, one hundred fifteen million, two hundred twenty thousand, four hundred eighty-one".

Divisors: 1 41843 1819067 76115220481