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1828108172 = 2211223971693
BaseRepresentation
bin110110011110110…
…1011011110001100
311201101220111222002
41230331223132030
512220443430142
6501222411432
763205443302
oct15475533614
94641814862
101828108172
11858a12800
12430290b78
13231981c17
14134b12272
15aa75ba32
hex6cf6b78c

1828108172 has 72 divisors (see below), whose sum is σ = 3709372128. Its totient is φ = 786170880.

The previous prime is 1828108153. The next prime is 1828108259. The reversal of 1828108172 is 2718018281.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1078958 + ... + 1080650.

Almost surely, 21828108172 is an apocalyptic number.

It is an amenable number.

1828108172 is an abundant number, since it is smaller than the sum of its proper divisors (1881263956).

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

1828108172 is a wasteful number, since it uses less digits than its factorization.

1828108172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1826 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 38.

The square root of 1828108172 is about 42756.3816523335. The cubic root of 1828108172 is about 1222.7395598072.

The spelling of 1828108172 in words is "one billion, eight hundred twenty-eight million, one hundred eight thousand, one hundred seventy-two".

Divisors: 1 2 4 11 22 23 44 46 92 97 121 194 242 253 388 484 506 1012 1067 1693 2134 2231 2783 3386 4268 4462 5566 6772 8924 11132 11737 18623 23474 24541 37246 38939 46948 49082 74492 77878 98164 155756 164221 204853 269951 328442 409706 428329 539902 656884 819412 856658 1079804 1713316 1806431 3612862 3777083 4711619 7225724 7554166 9423238 15108332 18846476 19870741 39741482 41547913 79482964 83095826 166191652 457027043 914054086 1828108172