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52276220 = 22519472927
BaseRepresentation
bin1100011101101…
…0101111111100
310122100220111022
43013122233330
5101340314340
65104243312
71203224543
oct307325774
9118326438
1052276220
1127565997
1215610538
13aaa4499
146d2b15a
1548c93b5
hex31dabfc

52276220 has 48 divisors (see below), whose sum is σ = 118056960. Its totient is φ = 19381824.

The previous prime is 52276193. The next prime is 52276229. The reversal of 52276220 is 2267225.

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 52276220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52276229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16397 + ... + 19323.

It is an arithmetic number, because the mean of its divisors is an integer number (2459520).

Almost surely, 252276220 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 52276220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59028480).

52276220 is an abundant number, since it is smaller than the sum of its proper divisors (65780740).

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

52276220 is a wasteful number, since it uses less digits than its factorization.

52276220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 52276220 is about 7230.2295952480. The cubic root of 52276220 is about 373.9108426556.

The spelling of 52276220 in words is "fifty-two million, two hundred seventy-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 47 76 94 95 188 190 235 380 470 893 940 1786 2927 3572 4465 5854 8930 11708 14635 17860 29270 55613 58540 111226 137569 222452 275138 278065 550276 556130 687845 1112260 1375690 2613811 2751380 5227622 10455244 13069055 26138110 52276220