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47028378 = 237838063
BaseRepresentation
bin1011001101100…
…1100010011010
310021111021210210
42303121202122
544014402003
64355551550
71110506655
oct263314232
9107437723
1047028378
1124601131
12138bb5b6
139987957
14636289c
1541de503
hex2cd989a

47028378 has 8 divisors (see below), whose sum is σ = 94056768. Its totient is φ = 15676124.

The previous prime is 47028367. The next prime is 47028379. The reversal of 47028378 is 87382074.

47028378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

47028378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (47028379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3919026 + ... + 3919037.

It is an arithmetic number, because the mean of its divisors is an integer number (11757096).

Almost surely, 247028378 is an apocalyptic number.

47028378 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.

47028378 is a wasteful number, since it uses less digits than its factorization.

47028378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838068.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 47028378 is about 6857.7239664483. The cubic root of 47028378 is about 360.9552255046.

The spelling of 47028378 in words is "forty-seven million, twenty-eight thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 7838063 15676126 23514189 47028378