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52540460 = 22572912941
BaseRepresentation
bin1100100001101…
…1010000101100
310122212022221222
43020123100230
5101422243320
65114042512
71205405120
oct310332054
9118768858
1052540460
1127726475
1215719438
13ab6783b
146d99580
15492c825
hex321b42c

52540460 has 48 divisors (see below), whose sum is σ = 130455360. Its totient is φ = 17391360.

The previous prime is 52540457. The next prime is 52540469. The reversal of 52540460 is 6404525.

It is not an unprimeable number, because it can be changed into a prime (52540469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2411 + ... + 10530.

It is an arithmetic number, because the mean of its divisors is an integer number (2717820).

Almost surely, 252540460 is an apocalyptic number.

It is an amenable number.

52540460 is an abundant number, since it is smaller than the sum of its proper divisors (77914900).

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

52540460 is a wasteful number, since it uses less digits than its factorization.

52540460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986 (or 12984 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 52540460 is about 7248.4798406287. The cubic root of 52540460 is about 374.5397850666.

Adding to 52540460 its reverse (6404525), we get a palindrome (58944985).

The spelling of 52540460 in words is "fifty-two million, five hundred forty thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 70 116 140 145 203 290 406 580 812 1015 2030 4060 12941 25882 51764 64705 90587 129410 181174 258820 362348 375289 452935 750578 905870 1501156 1811740 1876445 2627023 3752890 5254046 7505780 10508092 13135115 26270230 52540460