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132891242 = 21143140477
BaseRepresentation
bin1111110101111…
…00001001101010
3100021001120111212
413322330021222
5233010004432
621104153122
73202362011
oct772741152
9307046455
10132891242
1169017180
12386087a2
13216bb793
1413913a78
15ba002b2
hex7ebc26a

132891242 has 16 divisors (see below), whose sum is σ = 222517152. Its totient is φ = 58999920.

The previous prime is 132891229. The next prime is 132891251. The reversal of 132891242 is 242198231.

It is a junction number, because it is equal to n+sod(n) for n = 132891199 and 132891208.

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, 69293 + ... + 71184.

It is an arithmetic number, because the mean of its divisors is an integer number (13907322).

Almost surely, 2132891242 is an apocalyptic number.

132891242 is a deficient number, since it is larger than the sum of its proper divisors (89625910).

132891242 is a wasteful number, since it uses less digits than its factorization.

132891242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140533.

The product of its digits is 6912, while the sum is 32.

The square root of 132891242 is about 11527.8463730222. The cubic root of 132891242 is about 510.3076984660.

The spelling of 132891242 in words is "one hundred thirty-two million, eight hundred ninety-one thousand, two hundred forty-two".

Divisors: 1 2 11 22 43 86 473 946 140477 280954 1545247 3090494 6040511 12081022 66445621 132891242