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47142950 = 252942859
BaseRepresentation
bin1011001111010…
…1100000100110
310021201002222012
42303311200212
544032033300
64402234222
71111465001
oct263654046
9107632865
1047142950
112467a218
1213955972
1399c7b4a
146392538
154213435
hex2cf5826

47142950 has 12 divisors (see below), whose sum is σ = 87685980. Its totient is φ = 18857160.

The previous prime is 47142943. The next prime is 47142961. The reversal of 47142950 is 5924174.

It is a happy number.

47142950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 471380 + ... + 471479.

It is an arithmetic number, because the mean of its divisors is an integer number (7307165).

Almost surely, 247142950 is an apocalyptic number.

47142950 is a deficient number, since it is larger than the sum of its proper divisors (40543030).

47142950 is a wasteful number, since it uses less digits than its factorization.

47142950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942871 (or 942866 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 47142950 is about 6866.0723852869. The cubic root of 47142950 is about 361.2481112436.

The spelling of 47142950 in words is "forty-seven million, one hundred forty-two thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 942859 1885718 4714295 9428590 23571475 47142950