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132747551 = 311426841
BaseRepresentation
bin1111110100110…
…01000100011111
3100020210021101222
413322121010133
5232440410201
621101123555
73201223046
oct772310437
9306707358
10132747551
1168a29222
12385595bb
132166b261
14138b755d
15b9c291b
hex7e9911f

132747551 has 4 divisors (see below), whose sum is σ = 133174704. Its totient is φ = 132320400.

The previous prime is 132747497. The next prime is 132747553. The reversal of 132747551 is 155747231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155747231 = 532938627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132747551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132747553) 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, 213110 + ... + 213731.

It is an arithmetic number, because the mean of its divisors is an integer number (33293676).

Almost surely, 2132747551 is an apocalyptic number.

132747551 is a deficient number, since it is larger than the sum of its proper divisors (427153).

132747551 is an equidigital number, since it uses as much as digits as its factorization.

132747551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427152.

The product of its digits is 29400, while the sum is 35.

The square root of 132747551 is about 11521.6123437651. The cubic root of 132747551 is about 510.1237057341.

The spelling of 132747551 in words is "one hundred thirty-two million, seven hundred forty-seven thousand, five hundred fifty-one".

Divisors: 1 311 426841 132747551