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132705305 = 5296131493
BaseRepresentation
bin1111110100011…
…10110000011001
3100020201010110022
413322032300121
5232433032210
621100200225
73200655635
oct772166031
9306633408
10132705305
11689aa507
1238539075
1321654c65
14138a5dc5
15b9b5155
hex7e8ec19

132705305 has 16 divisors (see below), whose sum is σ = 165116880. Its totient is φ = 102267648.

The previous prime is 132705277. The next prime is 132705311. The reversal of 132705305 is 503507231.

It can be written as a sum of positive squares in 8 ways, for example, as 5895184 + 126810121 = 2428^2 + 11261^2 .

It is a cyclic number.

It is not a de Polignac number, because 132705305 - 26 = 132705241 is a prime.

It is a super-2 number, since 2×1327053052 = 35221395950286050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88139 + ... + 89631.

It is an arithmetic number, because the mean of its divisors is an integer number (10319805).

Almost surely, 2132705305 is an apocalyptic number.

It is an amenable number.

132705305 is a deficient number, since it is larger than the sum of its proper divisors (32411575).

132705305 is a wasteful number, since it uses less digits than its factorization.

132705305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 132705305 is about 11519.7788607247. The cubic root of 132705305 is about 510.0695855327.

The spelling of 132705305 in words is "one hundred thirty-two million, seven hundred five thousand, three hundred five".

Divisors: 1 5 29 145 613 1493 3065 7465 17777 43297 88885 216485 915209 4576045 26541061 132705305