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52578751852 = 22111770292449
BaseRepresentation
bin110000111101111100…
…000001010101101100
312000201022012100010201
4300331330001111230
51330140130024402
640053201043244
73540644005504
oct607574012554
9160638170121
1052578751852
1120331375530
12a234626524
134c5c0b33b3
14278b000a04
15157ae79687
hexc3df0156c

52578751852 has 24 divisors (see below), whose sum is σ = 106282184400. Its totient is φ = 22493583360.

The previous prime is 52578751843. The next prime is 52578751867. The reversal of 52578751852 is 25815787525.

52578751852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52578751793 and 52578751802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35145477 + ... + 35146972.

It is an arithmetic number, because the mean of its divisors is an integer number (4428424350).

Almost surely, 252578751852 is an apocalyptic number.

It is an amenable number.

52578751852 is an abundant number, since it is smaller than the sum of its proper divisors (53703432548).

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

52578751852 is a wasteful number, since it uses less digits than its factorization.

52578751852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70292481 (or 70292479 counting only the distinct ones).

The product of its digits is 7840000, while the sum is 55.

The spelling of 52578751852 in words is "fifty-two billion, five hundred seventy-eight million, seven hundred fifty-one thousand, eight hundred fifty-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 70292449 140584898 281169796 773216939 1194971633 1546433878 2389943266 3092867756 4779886532 13144687963 26289375926 52578751852