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13142330 = 251314233
BaseRepresentation
bin110010001000…
…100100111010
3220201200212222
4302020210322
511331023310
61145404042
7216464555
oct62104472
926650788
1013142330
117467033
124499622
132951c36
141a6169c
151249055
hexc8893a

13142330 has 8 divisors (see below), whose sum is σ = 23656212. Its totient is φ = 5256928.

The previous prime is 13142321. The next prime is 13142333. The reversal of 13142330 is 3324131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 1315609 = 3439^2 + 1147^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13142299 and 13142308.

It is not an unprimeable number, because it can be changed into a prime (13142333) 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, 657107 + ... + 657126.

Almost surely, 213142330 is an apocalyptic number.

13142330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13142330 is a deficient number, since it is larger than the sum of its proper divisors (10513882).

13142330 is a wasteful number, since it uses less digits than its factorization.

13142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314240.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13142330 is about 3625.2351647859. The cubic root of 13142330 is about 235.9884725769.

Adding to 13142330 its reverse (3324131), we get a palindrome (16466461).

The spelling of 13142330 in words is "thirteen million, one hundred forty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 1314233 2628466 6571165 13142330