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181232082 = 23210068449
BaseRepresentation
bin10101100110101…
…10000111010010
3110122000112200100
422303112013102
5332343411312
625552233230
74330306263
oct1263260722
9418015610
10181232082
1193334389
125083b816
132b715925
141a0d896a
1510d9d5dc
hexacd61d2

181232082 has 12 divisors (see below), whose sum is σ = 392669550. Its totient is φ = 60410688.

The previous prime is 181232059. The next prime is 181232113. The reversal of 181232082 is 280232181.

181232082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 116445681 + 64786401 = 10791^2 + 8049^2 .

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, 5034207 + ... + 5034242.

Almost surely, 2181232082 is an apocalyptic number.

181232082 is an abundant number, since it is smaller than the sum of its proper divisors (211437468).

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

181232082 is a wasteful number, since it uses less digits than its factorization.

181232082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068457 (or 10068454 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 181232082 is about 13462.2465435751. The cubic root of 181232082 is about 565.9069486223.

Subtracting 181232082 from its reverse (280232181), we obtain a palindrome (99000099).

It can be divided in two parts, 18123208 and 2, that added together give a triangular number (18123210 = T6020).

The spelling of 181232082 in words is "one hundred eighty-one million, two hundred thirty-two thousand, eighty-two".

Divisors: 1 2 3 6 9 18 10068449 20136898 30205347 60410694 90616041 181232082