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13420822 = 2231971481
BaseRepresentation
bin110011001100…
…100100010110
3221020211220111
4303030210112
511413431242
61155353234
7222034522
oct63144426
927224814
1013420822
117637298
1245b281a
132a1b91c
141ad4d82
1512a1817
hexccc916

13420822 has 16 divisors (see below), whose sum is σ = 21127392. Its totient is φ = 6381760.

The previous prime is 13420807. The next prime is 13420873. The reversal of 13420822 is 22802431.

It is a junction number, because it is equal to n+sod(n) for n = 13420793 and 13420802.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8322 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (1320462).

Almost surely, 213420822 is an apocalyptic number.

13420822 is a deficient number, since it is larger than the sum of its proper divisors (7706570).

13420822 is a wasteful number, since it uses less digits than its factorization.

13420822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 13420822 is about 3663.4440080340. Note that the first 3 decimals coincide. The cubic root of 13420822 is about 237.6437364456.

The spelling of 13420822 in words is "thirteen million, four hundred twenty thousand, eight hundred twenty-two".

Divisors: 1 2 23 46 197 394 1481 2962 4531 9062 34063 68126 291757 583514 6710411 13420822