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13212026 = 217523743
BaseRepresentation
bin110010011001…
…100101111010
3220212020111022
4302121211322
511340241101
61151102442
7220205012
oct62314572
926766438
1013212026
117504433
124511a22
132977889
141a7cc42
15125ea1b
hexc9997a

13212026 has 16 divisors (see below), whose sum is σ = 21052224. Its totient is φ = 6197184.

The previous prime is 13212013. The next prime is 13212053. The reversal of 13212026 is 62021231.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13211995 and 13212013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17411 + ... + 18153.

It is an arithmetic number, because the mean of its divisors is an integer number (1315764).

Almost surely, 213212026 is an apocalyptic number.

13212026 is a deficient number, since it is larger than the sum of its proper divisors (7840198).

13212026 is a wasteful number, since it uses less digits than its factorization.

13212026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13212026 is about 3634.8350719118. The cubic root of 13212026 is about 236.4048995829.

Adding to 13212026 its reverse (62021231), we get a palindrome (75233257).

The spelling of 13212026 in words is "thirteen million, two hundred twelve thousand, twenty-six".

Divisors: 1 2 17 34 523 743 1046 1486 8891 12631 17782 25262 388589 777178 6606013 13212026