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1828080669 = 317222116139
BaseRepresentation
bin110110011110110…
…0100110000011101
311201101212010020110
41230331210300131
512220442040134
6501222040233
763205300152
oct15475446035
94641763213
101828080669
118589a4078
12430279079
1323197254c
14134b06229
15aa7537e9
hex6cf64c1d

1828080669 has 16 divisors (see below), whose sum is σ = 2582141760. Its totient is φ = 1146443520.

The previous prime is 1828080623. The next prime is 1828080671. The reversal of 1828080669 is 9660808281.

It is not a de Polignac number, because 1828080669 - 211 = 1828078621 is a prime.

It is a super-2 number, since 2×18280806692 = 6683757864742975122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828080689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105202 + ... + 121340.

It is an arithmetic number, because the mean of its divisors is an integer number (161383860).

Almost surely, 21828080669 is an apocalyptic number.

It is an amenable number.

1828080669 is a deficient number, since it is larger than the sum of its proper divisors (754061091).

1828080669 is a wasteful number, since it uses less digits than its factorization.

1828080669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18380.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 1828080669 is about 42756.0600266208. The cubic root of 1828080669 is about 1222.7334279354.

The spelling of 1828080669 in words is "one billion, eight hundred twenty-eight million, eighty thousand, six hundred sixty-nine".

Divisors: 1 3 17 51 2221 6663 16139 37757 48417 113271 274363 823089 35844719 107534157 609360223 1828080669