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52142013 = 32711671123
BaseRepresentation
bin1100011011100…
…1111110111101
310122010002101200
43012321332331
5101322021023
65101330113
71202125350
oct306717675
9118102350
1052142013
1127484080
1215566939
13aa58381
146cd4297
15489e743
hex31b9fbd

52142013 has 48 divisors (see below), whose sum is σ = 95387136. Its totient is φ = 26658720.

The previous prime is 52141997. The next prime is 52142039. The reversal of 52142013 is 31024125.

It is not a de Polignac number, because 52142013 - 24 = 52141997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52142413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45870 + ... + 46992.

It is an arithmetic number, because the mean of its divisors is an integer number (1987232).

Almost surely, 252142013 is an apocalyptic number.

It is an amenable number.

52142013 is a deficient number, since it is larger than the sum of its proper divisors (43245123).

52142013 is a wasteful number, since it uses less digits than its factorization.

52142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52142013 is about 7220.9426669930. The cubic root of 52142013 is about 373.5905921550.

Adding to 52142013 its reverse (31024125), we get a palindrome (83166138).

It can be divided in two parts, 5214 and 2013, that added together give a palindrome (7227).

The spelling of 52142013 in words is "fifty-two million, one hundred forty-two thousand, thirteen".

Divisors: 1 3 7 9 11 21 33 63 67 77 99 201 231 469 603 693 737 1123 1407 2211 3369 4221 5159 6633 7861 10107 12353 15477 23583 37059 46431 70749 75241 86471 111177 225723 259413 526687 677169 778239 827651 1580061 2482953 4740183 5793557 7448859 17380671 52142013