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13858330 = 251385833
BaseRepresentation
bin110100110111…
…011000011010
3222002002001111
4310313120122
512021431310
61213010534
7225536203
oct64673032
928062044
1013858330
117905a72
124783a4a
132b42ac5
141baa5aa
15133b28a
hexd3761a

13858330 has 8 divisors (see below), whose sum is σ = 24945012. Its totient is φ = 5543328.

The previous prime is 13858321. The next prime is 13858337. The reversal of 13858330 is 3385831.

It can be written as a sum of positive squares in 2 ways, for example, as 13329801 + 528529 = 3651^2 + 727^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13858292 and 13858301.

It is not an unprimeable number, because it can be changed into a prime (13858337) 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, 692907 + ... + 692926.

Almost surely, 213858330 is an apocalyptic number.

13858330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13858330 is a deficient number, since it is larger than the sum of its proper divisors (11086682).

13858330 is a wasteful number, since it uses less digits than its factorization.

13858330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385840.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13858330 is about 3722.6777996491. The cubic root of 13858330 is about 240.1985047523.

The spelling of 13858330 in words is "thirteen million, eight hundred fifty-eight thousand, three hundred thirty".

Divisors: 1 2 5 10 1385833 2771666 6929165 13858330