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13828315 = 57138953
BaseRepresentation
bin110100110000…
…000011011011
3222000112212211
4310300003123
512020001230
61212215551
7225352534
oct64600333
928015784
1013828315
117895466
12476a5b7
132b32247
141b9d68b
15133242a
hexd300db

13828315 has 8 divisors (see below), whose sum is σ = 16828128. Its totient is φ = 10906560.

The previous prime is 13828303. The next prime is 13828349. The reversal of 13828315 is 51382831.

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

It is not a de Polignac number, because 13828315 - 213 = 13820123 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 19122 + ... + 19831.

It is an arithmetic number, because the mean of its divisors is an integer number (2103516).

Almost surely, 213828315 is an apocalyptic number.

13828315 is a deficient number, since it is larger than the sum of its proper divisors (2999813).

13828315 is an equidigital number, since it uses as much as digits as its factorization.

13828315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39029.

The product of its digits is 5760, while the sum is 31.

The square root of 13828315 is about 3718.6442421937. The cubic root of 13828315 is about 240.0249684671.

The spelling of 13828315 in words is "thirteen million, eight hundred twenty-eight thousand, three hundred fifteen".

Divisors: 1 5 71 355 38953 194765 2765663 13828315