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13819408 = 245471579
BaseRepresentation
bin110100101101…
…111000010000
3222000002122221
4310231320100
512014210113
61212110424
7225314551
oct64557020
928002587
1013819408
1178897a9
124765414
132b2b185
141b9a328
15132e98d
hexd2de10

13819408 has 20 divisors (see below), whose sum is σ = 26841040. Its totient is φ = 6892704.

The previous prime is 13819387. The next prime is 13819427. The reversal of 13819408 is 80491831.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 7963 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (1342052).

Almost surely, 213819408 is an apocalyptic number.

It is an amenable number.

13819408 is a deficient number, since it is larger than the sum of its proper divisors (13021632).

13819408 is a wasteful number, since it uses less digits than its factorization.

13819408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2128 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13819408 is about 3717.4464353908. The cubic root of 13819408 is about 239.9734229830.

The spelling of 13819408 in words is "thirteen million, eight hundred nineteen thousand, four hundred eight".

Divisors: 1 2 4 8 16 547 1094 1579 2188 3158 4376 6316 8752 12632 25264 863713 1727426 3454852 6909704 13819408