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132731465 = 5103257731
BaseRepresentation
bin1111110100101…
…01001001001001
3100020202110100012
413322111021021
5232434401330
621100521305
73201125126
oct772251111
9306673305
10132731465
1168a18129
1238550235
1321663b39
14138b174d
15b9bcc95
hex7e95249

132731465 has 8 divisors (see below), whose sum is σ = 160824768. Its totient is φ = 105153840.

The previous prime is 132731453. The next prime is 132731471. The reversal of 132731465 is 564137231.

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

It is not a de Polignac number, because 132731465 - 214 = 132715081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128351 + ... + 129380.

It is an arithmetic number, because the mean of its divisors is an integer number (20103096).

Almost surely, 2132731465 is an apocalyptic number.

It is an amenable number.

132731465 is a deficient number, since it is larger than the sum of its proper divisors (28093303).

132731465 is a wasteful number, since it uses less digits than its factorization.

132731465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257839.

The product of its digits is 15120, while the sum is 32.

The square root of 132731465 is about 11520.9142432361. The cubic root of 132731465 is about 510.1030997510.

Adding to 132731465 its reverse (564137231), we get a palindrome (696868696).

The spelling of 132731465 in words is "one hundred thirty-two million, seven hundred thirty-one thousand, four hundred sixty-five".

Divisors: 1 5 103 515 257731 1288655 26546293 132731465