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47001142 = 253443407
BaseRepresentation
bin1011001101001…
…0111000110110
310021102220110001
42303102320312
544013014032
64355221514
71110334366
oct263227066
9107386401
1047001142
1124592721
12138a789a
139978436
1463569a6
1541d63e7
hex2cd2e36

47001142 has 8 divisors (see below), whose sum is σ = 71832096. Its totient is φ = 23057112.

The previous prime is 47001131. The next prime is 47001151. The reversal of 47001142 is 24110074.

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

It is a congruent 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, 221598 + ... + 221809.

It is an arithmetic number, because the mean of its divisors is an integer number (8979012).

Almost surely, 247001142 is an apocalyptic number.

47001142 is a deficient number, since it is larger than the sum of its proper divisors (24830954).

47001142 is a wasteful number, since it uses less digits than its factorization.

47001142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443462.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 47001142 is about 6855.7378888053. The cubic root of 47001142 is about 360.8855308834.

The spelling of 47001142 in words is "forty-seven million, one thousand, one hundred forty-two".

Divisors: 1 2 53 106 443407 886814 23500571 47001142