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76380656884 = 2272389697229
BaseRepresentation
bin100011100100010100…
…1000101010011110100
321022011002200101121221
41013020221011103310
52222411422010014
655031102320124
75342532604600
oct1071051052364
9238132611557
1076380656884
112a435987024
1212977889044
13728334157c
1439a81d2500
151ec088ab24
hex11c8a454f4

76380656884 has 18 divisors (see below), whose sum is σ = 155489194770. Its totient is φ = 32734567152.

The previous prime is 76380656879. The next prime is 76380656897. The reversal of 76380656884 is 48865608367.

It can be written as a sum of positive squares in only one way, i.e., 58504966884 + 17875690000 = 241878^2 + 133700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194848419 + ... + 194848810.

Almost surely, 276380656884 is an apocalyptic number.

It is an amenable number.

76380656884 is an abundant number, since it is smaller than the sum of its proper divisors (79108537886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76380656884 is a wasteful number, since it uses less digits than its factorization.

76380656884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389697247 (or 389697238 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 76380656884 in words is "seventy-six billion, three hundred eighty million, six hundred fifty-six thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 389697229 779394458 1558788916 2727880603 5455761206 10911522412 19095164221 38190328442 76380656884