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132112221 = 3439100313
BaseRepresentation
bin1111101111111…
…01111101011101
3100012120222220020
413313331331131
5232310042341
621035342353
73162635553
oct767757535
9305528806
10132112221
116863495a
12382b19b9
13214a8017
141378dbd3
15b8e9566
hex7dfdf5d

132112221 has 8 divisors (see below), whose sum is σ = 176552640. Its totient is φ = 87873312.

The previous prime is 132112213. The next prime is 132112241. The reversal of 132112221 is 122211231.

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

It is not a de Polignac number, because 132112221 - 23 = 132112213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132112241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48840 + ... + 51473.

It is an arithmetic number, because the mean of its divisors is an integer number (22069080).

Almost surely, 2132112221 is an apocalyptic number.

It is an amenable number.

132112221 is a deficient number, since it is larger than the sum of its proper divisors (44440419).

132112221 is a wasteful number, since it uses less digits than its factorization.

132112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100755.

The product of its digits is 48, while the sum is 15.

The square root of 132112221 is about 11494.0080476742. The cubic root of 132112221 is about 509.3085863253.

Adding to 132112221 its reverse (122211231), we get a palindrome (254323452).

The spelling of 132112221 in words is "one hundred thirty-two million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 439 1317 100313 300939 44037407 132112221