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13321384 = 231665173
BaseRepresentation
bin110010110100…
…010010101000
3221001210111121
4302310102220
511402241014
61153305024
7221141566
oct62642250
927053447
1013321384
11757960a
124565174
1329b559b
141aaaa36
151282124
hexcb44a8

13321384 has 8 divisors (see below), whose sum is σ = 24977610. Its totient is φ = 6660688.

The previous prime is 13321379. The next prime is 13321397. The reversal of 13321384 is 48312331.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 202500 = 3622^2 + 450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832579 + ... + 832594.

Almost surely, 213321384 is an apocalyptic number.

It is an amenable number.

13321384 is a deficient number, since it is larger than the sum of its proper divisors (11656226).

13321384 is a wasteful number, since it uses less digits than its factorization.

13321384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665179 (or 1665175 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 13321384 is about 3649.8471200860. The cubic root of 13321384 is about 237.0553616211.

The spelling of 13321384 in words is "thirteen million, three hundred twenty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 1665173 3330346 6660692 13321384