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47660142 = 237943357
BaseRepresentation
bin1011010111001…
…1110001101110
310022200101102110
42311303301232
544200111032
64421304450
71116050565
oct265636156
9108611373
1047660142
11249a2852
1213b65126
139b4938a
146488bdc
1542b67cc
hex2d73c6e

47660142 has 8 divisors (see below), whose sum is σ = 95320296. Its totient is φ = 15886712.

The previous prime is 47660111. The next prime is 47660143. The reversal of 47660142 is 24106674.

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

47660142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47660143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971673 + ... + 3971684.

It is an arithmetic number, because the mean of its divisors is an integer number (11915037).

Almost surely, 247660142 is an apocalyptic number.

47660142 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.

47660142 is a wasteful number, since it uses less digits than its factorization.

47660142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943362.

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

The square root of 47660142 is about 6903.6325220857. The cubic root of 47660142 is about 362.5643598766.

The spelling of 47660142 in words is "forty-seven million, six hundred sixty thousand, one hundred forty-two".

Divisors: 1 2 3 6 7943357 15886714 23830071 47660142