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52155441 = 33131391069
BaseRepresentation
bin1100011011110…
…1010000110001
310122010202211000
43012331100301
5101322433231
65101512213
71202212452
oct306752061
9118122730
1052155441
1127493178
1215572669
13aa61510
146cd9129
1548a36e6
hex31bd431

52155441 has 32 divisors (see below), whose sum is σ = 83888000. Its totient is φ = 31834944.

The previous prime is 52155407. The next prime is 52155449. The reversal of 52155441 is 14455125.

52155441 is a `hidden beast` number, since 5 + 215 + 5 + 441 = 666.

52155441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52155441 - 26 = 52155377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52155449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48255 + ... + 49323.

It is an arithmetic number, because the mean of its divisors is an integer number (2621500).

Almost surely, 252155441 is an apocalyptic number.

It is an amenable number.

52155441 is a deficient number, since it is larger than the sum of its proper divisors (31732559).

52155441 is a wasteful number, since it uses less digits than its factorization.

52155441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1224 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 52155441 is about 7221.8724026391. The cubic root of 52155441 is about 373.6226593475.

The spelling of 52155441 in words is "fifty-two million, one hundred fifty-five thousand, four hundred forty-one".

Divisors: 1 3 9 13 27 39 117 139 351 417 1069 1251 1807 3207 3753 5421 9621 13897 16263 28863 41691 48789 125073 148591 375219 445773 1337319 1931683 4011957 5795049 17385147 52155441