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13143035 = 52628607
BaseRepresentation
bin110010001000…
…101111111011
3220201201212002
4302020233323
511331034120
61145411215
7216466613
oct62105773
926651762
1013143035
117467614
124499b0b
132952359
141a61a43
151249375
hexc88bfb

13143035 has 4 divisors (see below), whose sum is σ = 15771648. Its totient is φ = 10514424.

The previous prime is 13142981. The next prime is 13143037. The reversal of 13143035 is 53034131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13143035 - 26 = 13142971 is a prime.

It is a super-2 number, since 2×131430352 = 345478738022450, 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 = 13142998 and 13143016.

It is not an unprimeable number, because it can be changed into a prime (13143037) 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, 1314299 + ... + 1314308.

It is an arithmetic number, because the mean of its divisors is an integer number (3942912).

Almost surely, 213143035 is an apocalyptic number.

13143035 is a deficient number, since it is larger than the sum of its proper divisors (2628613).

13143035 is an equidigital number, since it uses as much as digits as its factorization.

13143035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628612.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13143035 is about 3625.3323985533. The cubic root of 13143035 is about 235.9926922471.

Adding to 13143035 its reverse (53034131), we get a palindrome (66177166).

The spelling of 13143035 in words is "thirteen million, one hundred forty-three thousand, thirty-five".

Divisors: 1 5 2628607 13143035