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47142032 = 2473471213
BaseRepresentation
bin1011001111010…
…1010010010000
310021201001201012
42303311102100
544032021112
64402230052
71111462220
oct263652220
9107631635
1047142032
1124679563
1213955328
1399c75c2
146392080
154213022
hex2cf5490

47142032 has 40 divisors (see below), whose sum is σ = 104773056. Its totient is φ = 20128896.

The previous prime is 47142031. The next prime is 47142077. The reversal of 47142032 is 23024174.

It is a junction number, because it is equal to n+sod(n) for n = 47141989 and 47142007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47142031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38258 + ... + 39470.

Almost surely, 247142032 is an apocalyptic number.

It is an amenable number.

47142032 is an abundant number, since it is smaller than the sum of its proper divisors (57631024).

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

47142032 is a wasteful number, since it uses less digits than its factorization.

47142032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 47142032 is about 6866.0055345157. The cubic root of 47142032 is about 361.2457664043.

The spelling of 47142032 in words is "forty-seven million, one hundred forty-two thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 347 694 1213 1388 2426 2429 2776 4852 4858 5552 8491 9704 9716 16982 19408 19432 33964 38864 67928 135856 420911 841822 1683644 2946377 3367288 5892754 6734576 11785508 23571016 47142032