Search a number
-
+
132941781 = 3272110187
BaseRepresentation
bin1111110110010…
…00011111010101
3100021011010211200
413323020133111
5233013114111
621105223113
73202662240
oct773103725
9307133750
10132941781
1169051145
1238631a99
132170879b
1413928257
15ba10256
hex7ec87d5

132941781 has 12 divisors (see below), whose sum is σ = 219459552. Its totient is φ = 75966696.

The previous prime is 132941779. The next prime is 132941789. The reversal of 132941781 is 187149231.

It is a happy number.

It is not a de Polignac number, because 132941781 - 21 = 132941779 is a prime.

It is a super-2 number, since 2×1329417812 = 35347034270903922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132941789) 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 11 ways as a sum of consecutive naturals, for example, 1055031 + ... + 1055156.

It is an arithmetic number, because the mean of its divisors is an integer number (18288296).

Almost surely, 2132941781 is an apocalyptic number.

It is an amenable number.

132941781 is a deficient number, since it is larger than the sum of its proper divisors (86517771).

132941781 is a wasteful number, since it uses less digits than its factorization.

132941781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110200 (or 2110197 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 132941781 is about 11530.0382046201. The cubic root of 132941781 is about 510.3723808626.

The spelling of 132941781 in words is "one hundred thirty-two million, nine hundred forty-one thousand, seven hundred eighty-one".

Divisors: 1 3 7 9 21 63 2110187 6330561 14771309 18991683 44313927 132941781