Search a number
-
+
13308384 = 253138629
BaseRepresentation
bin110010110001…
…000111100000
3221001010200010
4302301013200
511401332014
61153124520
7221055645
oct62610740
927033603
1013308384
11756a871
124559740
1329ac6ab
141aa5dcc
15127d359
hexcb11e0

13308384 has 24 divisors (see below), whose sum is σ = 34934760. Its totient is φ = 4436096.

The previous prime is 13308377. The next prime is 13308389. The reversal of 13308384 is 48380331.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×133083842 = 354226169382912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13308389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69219 + ... + 69410.

It is an arithmetic number, because the mean of its divisors is an integer number (1455615).

Almost surely, 213308384 is an apocalyptic number.

It is an amenable number.

13308384 is an abundant number, since it is smaller than the sum of its proper divisors (21626376).

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

13308384 is a wasteful number, since it uses less digits than its factorization.

13308384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138642 (or 138634 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 13308384 is about 3648.0657888805. The cubic root of 13308384 is about 236.9782244231.

The spelling of 13308384 in words is "thirteen million, three hundred eight thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 138629 277258 415887 554516 831774 1109032 1663548 2218064 3327096 4436128 6654192 13308384