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52010240 = 285179227
BaseRepresentation
bin1100011001100…
…1110100000000
310121212101122012
43012121310000
5101303311430
65054432052
71201036232
oct306316400
9117771565
1052010240
11273a4077
1215502628
13aa103b9
146c9c252
154875695
hex3199d00

52010240 has 72 divisors (see below), whose sum is σ = 125828640. Its totient is φ = 20596736.

The previous prime is 52010227. The next prime is 52010243. The reversal of 52010240 is 4201025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52010243) 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, 229007 + ... + 229233.

It is an arithmetic number, because the mean of its divisors is an integer number (1747620).

Almost surely, 252010240 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 52010240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62914320).

52010240 is an abundant number, since it is smaller than the sum of its proper divisors (73818400).

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

52010240 is a wasteful number, since it uses less digits than its factorization.

52010240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 52010240 is about 7211.8125322279. The cubic root of 52010240 is about 373.2756146597.

Adding to 52010240 its reverse (4201025), we get a palindrome (56211265).

The spelling of 52010240 in words is "fifty-two million, ten thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 179 227 256 320 358 454 640 716 895 908 1135 1280 1432 1790 1816 2270 2864 3580 3632 4540 5728 7160 7264 9080 11456 14320 14528 18160 22912 28640 29056 36320 40633 45824 57280 58112 72640 81266 114560 145280 162532 203165 229120 290560 325064 406330 650128 812660 1300256 1625320 2600512 3250640 5201024 6501280 10402048 13002560 26005120 52010240