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132969131 = 271490661
BaseRepresentation
bin1111110110011…
…11001010101011
3100021012112100122
413323033022223
5233020003011
621105553455
73203135051
oct773171253
9307175318
10132969131
116906a749
123864588b
1321718079
14139341d1
15ba183db
hex7ecf2ab

132969131 has 4 divisors (see below), whose sum is σ = 133460064. Its totient is φ = 132478200.

The previous prime is 132969119. The next prime is 132969143. The reversal of 132969131 is 131969231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131969231 = 196945749.

It is an interprime number because it is at equal distance from previous prime (132969119) and next prime (132969143).

It is a cyclic number.

It is not a de Polignac number, because 132969131 - 210 = 132968107 is a prime.

It is a super-2 number, since 2×1329691312 = 35361579597790322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132969091 and 132969100.

It is not an unprimeable number, because it can be changed into a prime (132969181) 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, 245060 + ... + 245601.

It is an arithmetic number, because the mean of its divisors is an integer number (33365016).

Almost surely, 2132969131 is an apocalyptic number.

132969131 is a deficient number, since it is larger than the sum of its proper divisors (490933).

132969131 is an equidigital number, since it uses as much as digits as its factorization.

132969131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490932.

The product of its digits is 8748, while the sum is 35.

The square root of 132969131 is about 11531.2241761228. The cubic root of 132969131 is about 510.4073779553.

The spelling of 132969131 in words is "one hundred thirty-two million, nine hundred sixty-nine thousand, one hundred thirty-one".

Divisors: 1 271 490661 132969131