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132406225 = 527756607
BaseRepresentation
bin1111110010001…
…01101111010001
3100020010221012021
413321011233101
5232343444400
621045531441
73165301660
oct771055721
9306127167
10132406225
1168815836
1238413b81
132157baa3
1413828dd7
15b95671a
hex7e45bd1

132406225 has 12 divisors (see below), whose sum is σ = 187638784. Its totient is φ = 90792720.

The previous prime is 132406223. The next prime is 132406229. The reversal of 132406225 is 522604231.

It is not a de Polignac number, because 132406225 - 21 = 132406223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132406225.

It is not an unprimeable number, because it can be changed into a prime (132406223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378129 + ... + 378478.

Almost surely, 2132406225 is an apocalyptic number.

It is an amenable number.

132406225 is a deficient number, since it is larger than the sum of its proper divisors (55232559).

132406225 is an equidigital number, since it uses as much as digits as its factorization.

132406225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756624 (or 756619 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 132406225 is about 11506.7903865500. The cubic root of 132406225 is about 509.6861134025.

The spelling of 132406225 in words is "one hundred thirty-two million, four hundred six thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 175 756607 3783035 5296249 18915175 26481245 132406225