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1828493161 = 11239695509
BaseRepresentation
bin110110011111100…
…1001011101101001
311201102122002001221
41230333021131221
512221043240121
6501234542041
763211635565
oct15477113551
94642562057
101828493161
11859155a80
12430437921
13231a88221
14134bb26a5
15aa7d5b41
hex6cfc9769

1828493161 has 8 divisors (see below), whose sum is σ = 2003068800. Its totient is φ = 1655309040.

The previous prime is 1828493159. The next prime is 1828493189. The reversal of 1828493161 is 1613948281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1828493161 - 21 = 1828493159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1828493111) 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 7 ways as a sum of consecutive naturals, for example, 345126 + ... + 350383.

It is an arithmetic number, because the mean of its divisors is an integer number (250383600).

Almost surely, 21828493161 is an apocalyptic number.

1828493161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1828493161 is a deficient number, since it is larger than the sum of its proper divisors (174575639).

1828493161 is a wasteful number, since it uses less digits than its factorization.

1828493161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695759.

The product of its digits is 82944, while the sum is 43.

The square root of 1828493161 is about 42760.8835385800. The cubic root of 1828493161 is about 1222.8253877406.

The spelling of 1828493161 in words is "one billion, eight hundred twenty-eight million, four hundred ninety-three thousand, one hundred sixty-one".

Divisors: 1 11 239 2629 695509 7650599 166226651 1828493161