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13040022 = 232173337
BaseRepresentation
bin110001101111…
…100110010110
3220112111112210
4301233212112
511314240042
61143254250
7215560362
oct61574626
926474483
1013040022
1173a7186
12444a386
1329174b8
141a362a2
151228a9c
hexc6f996

13040022 has 8 divisors (see below), whose sum is σ = 26080056. Its totient is φ = 4346672.

The previous prime is 13039993. The next prime is 13040029. The reversal of 13040022 is 22004031.

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

13040022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040029) 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, 1086663 + ... + 1086674.

It is an arithmetic number, because the mean of its divisors is an integer number (3260007).

Almost surely, 213040022 is an apocalyptic number.

13040022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13040022 is a wasteful number, since it uses less digits than its factorization.

13040022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173342.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 13040022 is about 3611.0970632205. The cubic root of 13040022 is about 235.3745167478.

Adding to 13040022 its reverse (22004031), we get a palindrome (35044053).

The spelling of 13040022 in words is "thirteen million, forty thousand, twenty-two".

Divisors: 1 2 3 6 2173337 4346674 6520011 13040022