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47142066 = 237857011
BaseRepresentation
bin1011001111010…
…1010010110010
310021201001202110
42303311102302
544032021231
64402230150
71111462266
oct263652262
9107631673
1047142066
1124679594
1213955356
1399c761a
1463920a6
154213046
hex2cf54b2

47142066 has 8 divisors (see below), whose sum is σ = 94284144. Its totient is φ = 15714020.

The previous prime is 47142031. The next prime is 47142077. The reversal of 47142066 is 66024174.

It is a sphenic number, since it is the product of 3 distinct primes.

47142066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928500 + ... + 3928511.

It is an arithmetic number, because the mean of its divisors is an integer number (11785518).

Almost surely, 247142066 is an apocalyptic number.

47142066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47142066 is a wasteful number, since it uses less digits than its factorization.

47142066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857016.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 47142066 is about 6866.0080104818. The cubic root of 47142066 is about 361.2458532508.

The spelling of 47142066 in words is "forty-seven million, one hundred forty-two thousand, sixty-six".

Divisors: 1 2 3 6 7857011 15714022 23571033 47142066