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52012152 = 2333240797
BaseRepresentation
bin1100011001101…
…0010001111000
310121212111021000
43012122101320
5101303342102
65054445000
71201044633
oct306322170
9117774230
1052012152
11273a5555
1215503760
13aa1122a
146c9cc1a
15487601c
hex319a478

52012152 has 32 divisors (see below), whose sum is σ = 144478800. Its totient is φ = 17337312.

The previous prime is 52012151. The next prime is 52012153. The reversal of 52012152 is 25121025.

It is an interprime number because it is at equal distance from previous prime (52012151) and next prime (52012153).

It is a super-2 number, since 2×520121522 = 5410527911342208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52012151) 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, 120183 + ... + 120614.

Almost surely, 252012152 is an apocalyptic number.

It is an amenable number.

52012152 is an abundant number, since it is smaller than the sum of its proper divisors (92466648).

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

52012152 is a wasteful number, since it uses less digits than its factorization.

52012152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240812 (or 240802 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52012152 is about 7211.9450913051. The cubic root of 52012152 is about 373.2801887220.

Adding to 52012152 its reverse (25121025), we get a palindrome (77133177).

The spelling of 52012152 in words is "fifty-two million, twelve thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 240797 481594 722391 963188 1444782 1926376 2167173 2889564 4334346 5779128 6501519 8668692 13003038 17337384 26006076 52012152