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132949687 = 1310226899
BaseRepresentation
bin1111110110010…
…10011010110111
3100021011112200111
413323022122313
5233013342222
621105323451
73203024263
oct773123267
9307145614
10132949687
1169057082
1238636587
132170c270
141392b0a3
15ba12777
hex7eca6b7

132949687 has 4 divisors (see below), whose sum is σ = 143176600. Its totient is φ = 122722776.

The previous prime is 132949667. The next prime is 132949693. The reversal of 132949687 is 786949231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132949687 - 215 = 132916919 is a prime.

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 132949687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132949627) 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, 5113437 + ... + 5113462.

It is an arithmetic number, because the mean of its divisors is an integer number (35794150).

Almost surely, 2132949687 is an apocalyptic number.

132949687 is a deficient number, since it is larger than the sum of its proper divisors (10226913).

132949687 is a wasteful number, since it uses less digits than its factorization.

132949687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10226912.

The product of its digits is 653184, while the sum is 49.

The square root of 132949687 is about 11530.3810431399. The cubic root of 132949687 is about 510.3824978828.

The spelling of 132949687 in words is "one hundred thirty-two million, nine hundred forty-nine thousand, six hundred eighty-seven".

Divisors: 1 13 10226899 132949687