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47844886420 = 2252392244321
BaseRepresentation
bin101100100011110001…
…110000011110010100
311120111101121001120101
4230203301300132110
51240441242331140
633551333543444
73312432552532
oct544361603624
9146441531511
1047844886420
1119322211351
1293331a4b84
1346864260a6
14245c419152
1513a059299a
hexb23c70794

47844886420 has 12 divisors (see below), whose sum is σ = 100474261524. Its totient is φ = 19137954560.

The previous prime is 47844886393. The next prime is 47844886433. The reversal of 47844886420 is 2468844874.

It can be written as a sum of positive squares in 2 ways, for example, as 12500134416 + 35344752004 = 111804^2 + 188002^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1196122141 + ... + 1196122180.

It is an arithmetic number, because the mean of its divisors is an integer number (8372855127).

Almost surely, 247844886420 is an apocalyptic number.

It is an amenable number.

47844886420 is an abundant number, since it is smaller than the sum of its proper divisors (52629375104).

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

47844886420 is a wasteful number, since it uses less digits than its factorization.

47844886420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392244330 (or 2392244328 counting only the distinct ones).

The product of its (nonzero) digits is 11010048, while the sum is 55.

The spelling of 47844886420 in words is "forty-seven billion, eight hundred forty-four million, eight hundred eighty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2392244321 4784488642 9568977284 11961221605 23922443210 47844886420