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52810780806 = 23271724654893
BaseRepresentation
bin110001001011110001…
…001001000010000110
312001022110210122000200
4301023301021002012
51331124024441211
640132210151330
73546462141660
oct611361110206
9161273718020
1052810780806
11204403442a3
12a29a282546
134c981a3034
1427adb5d530
15159150db56
hexc4bc49086

52810780806 has 48 divisors (see below), whose sum is σ = 138461884704. Its totient is φ = 14201217792.

The previous prime is 52810780777. The next prime is 52810780843. The reversal of 52810780806 is 60808701825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12325305 + ... + 12329588.

It is an arithmetic number, because the mean of its divisors is an integer number (2884622598).

Almost surely, 252810780806 is an apocalyptic number.

52810780806 is an abundant number, since it is smaller than the sum of its proper divisors (85651103898).

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

52810780806 is a wasteful number, since it uses less digits than its factorization.

52810780806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24654925 (or 24654922 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 52810780806 in words is "fifty-two billion, eight hundred ten million, seven hundred eighty thousand, eight hundred six".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 51 63 102 119 126 153 238 306 357 714 1071 2142 24654893 49309786 73964679 147929358 172584251 221894037 345168502 419133181 443788074 517752753 838266362 1035505506 1257399543 1553258259 2514799086 2933932267 3106516518 3772198629 5867864534 7544397258 8801796801 17603593602 26405390403 52810780806