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13404168 = 2332832243
BaseRepresentation
bin110011001000…
…100000001000
3221020000001200
4303020200020
511412413133
61155144200
7221635131
oct63104010
927200050
1013404168
117625828
1245a5060
132a1417b
141accc88
15129b913
hexcc8808

13404168 has 48 divisors (see below), whose sum is σ = 36756720. Its totient is φ = 4412256.

The previous prime is 13404163. The next prime is 13404169. The reversal of 13404168 is 86140431.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13404163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4855 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (765765).

Almost surely, 213404168 is an apocalyptic number.

13404168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13404168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18378360).

13404168 is an abundant number, since it is smaller than the sum of its proper divisors (23352552).

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

13404168 is a wasteful number, since it uses less digits than its factorization.

13404168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338 (or 2331 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13404168 is about 3661.1703046977. The cubic root of 13404168 is about 237.5453977853.

Adding to 13404168 its reverse (86140431), we get a palindrome (99544599).

The spelling of 13404168 in words is "thirteen million, four hundred four thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 83 166 249 332 498 664 747 996 1494 1992 2243 2988 4486 5976 6729 8972 13458 17944 20187 26916 40374 53832 80748 161496 186169 372338 558507 744676 1117014 1489352 1675521 2234028 3351042 4468056 6702084 13404168