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52718620 = 22541239269
BaseRepresentation
bin1100100100011…
…0110000011100
310200012101100111
43021012300130
5101443443440
65121535404
71210046413
oct311066034
9120171314
1052718620
1127838309
12157a4564
13abca966
14700447a
1549654ea
hex3246c1c

52718620 has 48 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 20410880.

The previous prime is 52718591. The next prime is 52718621. The reversal of 52718620 is 2681725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52718621) 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, 195846 + ... + 196114.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 252718620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52718620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57153600).

52718620 is an abundant number, since it is smaller than the sum of its proper divisors (61588580).

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

52718620 is a wasteful number, since it uses less digits than its factorization.

52718620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 52718620 is about 7260.7589135021. The cubic root of 52718620 is about 374.9626510951.

The spelling of 52718620 in words is "fifty-two million, seven hundred eighteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 239 269 410 478 538 820 956 1076 1195 1345 2390 2690 4780 5380 9799 11029 19598 22058 39196 44116 48995 55145 64291 97990 110290 128582 195980 220580 257164 321455 642910 1285820 2635931 5271862 10543724 13179655 26359310 52718620