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132100729 = 4111328513
BaseRepresentation
bin1111101111110…
…11001001111001
3100012120102010121
413313323021321
5232304210404
621035213241
73162560215
oct767731171
9305512117
10132100729
1168627262
12382a7221
13214a2a17
1413789945
15b8e5e54
hex7dfb279

132100729 has 8 divisors (see below), whose sum is σ = 136525032. Its totient is φ = 127733760.

The previous prime is 132100723. The next prime is 132100733. The reversal of 132100729 is 927001231.

It can be written as a sum of positive squares in 4 ways, for example, as 769129 + 131331600 = 877^2 + 11460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132100729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132100723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9624 + ... + 18889.

It is an arithmetic number, because the mean of its divisors is an integer number (17065629).

Almost surely, 2132100729 is an apocalyptic number.

It is an amenable number.

132100729 is a deficient number, since it is larger than the sum of its proper divisors (4424303).

132100729 is a wasteful number, since it uses less digits than its factorization.

132100729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28667.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 132100729 is about 11493.5081241543. The cubic root of 132100729 is about 509.2938182139.

The spelling of 132100729 in words is "one hundred thirty-two million, one hundred thousand, seven hundred twenty-nine".

Divisors: 1 41 113 4633 28513 1169033 3221969 132100729