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3232105561 = 19229330557
BaseRepresentation
bin1100000010100110…
…0000010001011001
322100020202222022101
43000221200101121
523104404334221
61252415123401
7143044305166
oct30051402131
98306688271
103232105561
111409491823
12762513561
133c67cccc9
1422938506d
1513db40d91
hexc0a60459

3232105561 has 12 divisors (see below), whose sum is σ = 3422923812. Its totient is φ = 3051444384.

The previous prime is 3232105559. The next prime is 3232105579. The reversal of 3232105561 is 1655012323.

It can be written as a sum of positive squares in 2 ways, for example, as 1670275161 + 1561830400 = 40869^2 + 39520^2 .

It is not a de Polignac number, because 3232105561 - 21 = 3232105559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3232105861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90495 + ... + 121051.

It is an arithmetic number, because the mean of its divisors is an integer number (285243651).

Almost surely, 23232105561 is an apocalyptic number.

It is an amenable number.

3232105561 is a deficient number, since it is larger than the sum of its proper divisors (190818251).

3232105561 is a wasteful number, since it uses less digits than its factorization.

3232105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30888 (or 30869 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 3232105561 is about 56851.6100123822. The cubic root of 3232105561 is about 1478.5244547868.

Adding to 3232105561 its reverse (1655012323), we get a palindrome (4887117884).

The spelling of 3232105561 in words is "three billion, two hundred thirty-two million, one hundred five thousand, five hundred sixty-one".

Divisors: 1 19 293 361 5567 30557 105773 580583 8953201 11031077 170110819 3232105561