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52102860 = 2235868381
BaseRepresentation
bin1100011011000…
…0011011001100
310122001002200120
43012300123030
5101314242420
65100424540
71201603245
oct306603314
9118032616
1052102860
1127457717
1215548150
13aa435c4
146cc3ccc
154892d40
hex31b06cc

52102860 has 24 divisors (see below), whose sum is σ = 145888176. Its totient is φ = 13894080.

The previous prime is 52102849. The next prime is 52102861. The reversal of 52102860 is 6820125.

It is a self number, because there is not a number n which added to its sum of digits gives 52102860.

It is not an unprimeable number, because it can be changed into a prime (52102861) 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, 434131 + ... + 434250.

It is an arithmetic number, because the mean of its divisors is an integer number (6078674).

Almost surely, 252102860 is an apocalyptic number.

It is an amenable number.

52102860 is an abundant number, since it is smaller than the sum of its proper divisors (93785316).

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

52102860 is a wasteful number, since it uses less digits than its factorization.

52102860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868393 (or 868391 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 52102860 is about 7218.2310852452. The cubic root of 52102860 is about 373.4970600601.

Adding to 52102860 its reverse (6820125), we get a palindrome (58922985).

The spelling of 52102860 in words is "fifty-two million, one hundred two thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 868381 1736762 2605143 3473524 4341905 5210286 8683810 10420572 13025715 17367620 26051430 52102860