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13550152 = 2371121997
BaseRepresentation
bin110011101100…
…001001001000
3221111102022111
4303230021020
511432101102
61202232104
7223113550
oct63541110
927442274
1013550152
117715480
124655634
132a65755
141b2a160
1512c9cd7
hexcec248

13550152 has 32 divisors (see below), whose sum is σ = 31677120. Its totient is φ = 5279040.

The previous prime is 13550143. The next prime is 13550153. The reversal of 13550152 is 25105531.

It is a super-3 number, since 3×135501523 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (13550153) 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, 10383 + ... + 11614.

It is an arithmetic number, because the mean of its divisors is an integer number (989910).

Almost surely, 213550152 is an apocalyptic number.

It is an amenable number.

13550152 is an abundant number, since it is smaller than the sum of its proper divisors (18126968).

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

13550152 is a wasteful number, since it uses less digits than its factorization.

13550152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22021 (or 22017 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 13550152 is about 3681.0531101846. The cubic root of 13550152 is about 238.4046502253.

Adding to 13550152 its reverse (25105531), we get a palindrome (38655683).

The spelling of 13550152 in words is "thirteen million, five hundred fifty thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 21997 43994 87988 153979 175976 241967 307958 483934 615916 967868 1231832 1693769 1935736 3387538 6775076 13550152