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13111026 = 2319472447
BaseRepresentation
bin110010000000…
…111011110010
3220200002221120
4302000323302
511324023101
61145003110
7216304365
oct62007362
926602846
1013111026
117445565
124483496
132940906
141a540dc
15123eb36
hexc80ef2

13111026 has 32 divisors (see below), whose sum is σ = 28200960. Its totient is φ = 4050576.

The previous prime is 13111013. The next prime is 13111027. The reversal of 13111026 is 62011131.

It is a junction number, because it is equal to n+sod(n) for n = 13110996 and 13111014.

It is not an unprimeable number, because it can be changed into a prime (13111027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4135 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (881280).

Almost surely, 213111026 is an apocalyptic number.

13111026 is an abundant number, since it is smaller than the sum of its proper divisors (15089934).

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

13111026 is a wasteful number, since it uses less digits than its factorization.

13111026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 13111026 is about 3620.9150777117. The cubic root of 13111026 is about 235.8009549320.

Adding to 13111026 its reverse (62011131), we get a palindrome (75122157).

The spelling of 13111026 in words is "thirteen million, one hundred eleven thousand, twenty-six".

Divisors: 1 2 3 6 19 38 47 57 94 114 141 282 893 1786 2447 2679 4894 5358 7341 14682 46493 92986 115009 139479 230018 278958 345027 690054 2185171 4370342 6555513 13111026