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13420168 = 231677521
BaseRepresentation
bin110011001100…
…011010001000
3221020211000021
4303030122020
511413421133
61155350224
7222032566
oct63143210
927224007
1013420168
117636853
1245b2374
132a1b538
141ad4a36
1512a152d
hexccc688

13420168 has 8 divisors (see below), whose sum is σ = 25162830. Its totient is φ = 6710080.

The previous prime is 13420153. The next prime is 13420177. The reversal of 13420168 is 86102431.

It can be written as a sum of positive squares in only one way, i.e., 13380964 + 39204 = 3658^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838753 + ... + 838768.

Almost surely, 213420168 is an apocalyptic number.

It is an amenable number.

13420168 is a deficient number, since it is larger than the sum of its proper divisors (11742662).

13420168 is a wasteful number, since it uses less digits than its factorization.

13420168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677527 (or 1677523 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13420168 is about 3663.3547466769. The cubic root of 13420168 is about 237.6398762368.

Adding to 13420168 its reverse (86102431), we get a palindrome (99522599).

It can be divided in two parts, 134 and 20168, that added together give a palindrome (20302).

The spelling of 13420168 in words is "thirteen million, four hundred twenty thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 1677521 3355042 6710084 13420168