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132272869 = 177780757
BaseRepresentation
bin1111110001001…
…01001011100101
3100012220011021011
413320211023211
5232330212434
621043022221
73164205121
oct770451345
9305804234
10132272869
1168734623
123836a971
1321533191
14137d2581
15b92be64
hex7e252e5

132272869 has 4 divisors (see below), whose sum is σ = 140053644. Its totient is φ = 124492096.

The previous prime is 132272831. The next prime is 132272893. The reversal of 132272869 is 968272231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968272231 = 3492774419.

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 87890625 = 6662^2 + 9375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132272869 is a prime.

It is a super-2 number, since 2×1322728692 = 34992223746982322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132222869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3890362 + ... + 3890395.

It is an arithmetic number, because the mean of its divisors is an integer number (35013411).

Almost surely, 2132272869 is an apocalyptic number.

It is an amenable number.

132272869 is a deficient number, since it is larger than the sum of its proper divisors (7780775).

132272869 is an equidigital number, since it uses as much as digits as its factorization.

132272869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780774.

The product of its digits is 72576, while the sum is 40.

The square root of 132272869 is about 11500.9942613671. The cubic root of 132272869 is about 509.5149418603.

The spelling of 132272869 in words is "one hundred thirty-two million, two hundred seventy-two thousand, eight hundred sixty-nine".

Divisors: 1 17 7780757 132272869