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13448740 = 2251494513
BaseRepresentation
bin110011010011…
…011000100100
3221022021012111
4303103120210
511420324430
61200130404
7222212104
oct63233044
927267174
1013448740
117656268
124606a04
132a2b546
141b01204
1512a9c2a
hexcd3624

13448740 has 24 divisors (see below), whose sum is σ = 28438200. Its totient is φ = 5342208.

The previous prime is 13448737. The next prime is 13448783. The reversal of 13448740 is 4784431.

It can be written as a sum of positive squares in 4 ways, for example, as 1016064 + 12432676 = 1008^2 + 3526^2 .

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, 724 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (1184925).

Almost surely, 213448740 is an apocalyptic number.

13448740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13448740 is an abundant number, since it is smaller than the sum of its proper divisors (14989460).

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

13448740 is a wasteful number, since it uses less digits than its factorization.

13448740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 13448740 is about 3667.2523774619. The cubic root of 13448740 is about 237.8084045202.

The spelling of 13448740 in words is "thirteen million, four hundred forty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 4513 9026 18052 22565 45130 90260 672437 1344874 2689748 3362185 6724370 13448740