Search a number
-
+
13238004 = 2231384859
BaseRepresentation
bin110010011111…
…111011110100
3220220120010110
4302133323310
511342104004
61151423020
7220343523
oct62377364
926816113
1013238004
1175219aa
124524a70
132986650
141a884ba
151267589
hexc9fef4

13238004 has 24 divisors (see below), whose sum is σ = 33265120. Its totient is φ = 4073184.

The previous prime is 13237997. The next prime is 13238009. The reversal of 13238004 is 40083231.

13238004 = T416 + T417 + ... + T532.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13238009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42274 + ... + 42585.

Almost surely, 213238004 is an apocalyptic number.

It is an amenable number.

13238004 is an abundant number, since it is smaller than the sum of its proper divisors (20027116).

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

13238004 is a wasteful number, since it uses less digits than its factorization.

13238004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84879 (or 84877 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13238004 is about 3638.4067941889. The cubic root of 13238004 is about 236.5597409818.

It can be divided in two parts, 132 and 38004, that multiplied together give a triangular number (5016528 = T3167).

The spelling of 13238004 in words is "thirteen million, two hundred thirty-eight thousand, four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 84859 169718 254577 339436 509154 1018308 1103167 2206334 3309501 4412668 6619002 13238004