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13400148 = 2231765687
BaseRepresentation
bin110011000111…
…100001010100
3221012210112210
4303013201110
511412301043
61155113420
7221620326
oct63074124
927183483
1013400148
117622803
1245a2870
132a123a8
141acb616
15129a633
hexcc7854

13400148 has 24 divisors (see below), whose sum is σ = 33106752. Its totient is φ = 4203904.

The previous prime is 13400147. The next prime is 13400161. The reversal of 13400148 is 84100431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400141) 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 7 ways as a sum of consecutive naturals, for example, 32640 + ... + 33047.

It is an arithmetic number, because the mean of its divisors is an integer number (1379448).

Almost surely, 213400148 is an apocalyptic number.

It is an amenable number.

13400148 is an abundant number, since it is smaller than the sum of its proper divisors (19706604).

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

13400148 is a wasteful number, since it uses less digits than its factorization.

13400148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65711 (or 65709 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13400148 is about 3660.6212587483. The cubic root of 13400148 is about 237.5216482575.

Adding to 13400148 its reverse (84100431), we get a palindrome (97500579).

The spelling of 13400148 in words is "thirteen million, four hundred thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 65687 131374 197061 262748 394122 788244 1116679 2233358 3350037 4466716 6700074 13400148