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47000442 = 2313159797
BaseRepresentation
bin1011001101001…
…0101101111010
310021102212111010
42303102231322
544013003232
64355214350
71110332346
oct263225572
9107385433
1047000442
1124592145
12138a73b6
139978018
146356626
1541d60cc
hex2cd2b7a

47000442 has 16 divisors (see below), whose sum is σ = 94720032. Its totient is φ = 15546960.

The previous prime is 47000413. The next prime is 47000449. The reversal of 47000442 is 24400074.

It is not an unprimeable number, because it can be changed into a prime (47000449) 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, 29113 + ... + 30684.

It is an arithmetic number, because the mean of its divisors is an integer number (5920002).

Almost surely, 247000442 is an apocalyptic number.

47000442 is an abundant number, since it is smaller than the sum of its proper divisors (47719590).

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

47000442 is a wasteful number, since it uses less digits than its factorization.

47000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59933.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 47000442 is about 6855.6868364884. The cubic root of 47000442 is about 360.8837392877.

The spelling of 47000442 in words is "forty-seven million, four hundred forty-two", and thus it is an aban number.

Divisors: 1 2 3 6 131 262 393 786 59797 119594 179391 358782 7833407 15666814 23500221 47000442