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13438708 = 226834919
BaseRepresentation
bin110011010000…
…111011110100
3221021202102221
4303100323310
511420014313
61200012124
7222140623
oct63207364
927252387
1013438708
117649778
124601044
132a26aca
141adb6ba
1512a6c8d
hexcd0ef4

13438708 has 12 divisors (see below), whose sum is σ = 23556960. Its totient is φ = 6708152.

The previous prime is 13438699. The next prime is 13438709. The reversal of 13438708 is 80783431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (1963080).

Almost surely, 213438708 is an apocalyptic number.

It is an amenable number.

13438708 is a deficient number, since it is larger than the sum of its proper divisors (10118252).

13438708 is a wasteful number, since it uses less digits than its factorization.

13438708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606 (or 5604 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 13438708 is about 3665.8843407833. The cubic root of 13438708 is about 237.7492592680.

The spelling of 13438708 in words is "thirteen million, four hundred thirty-eight thousand, seven hundred eight".

Divisors: 1 2 4 683 1366 2732 4919 9838 19676 3359677 6719354 13438708