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47378965 = 523411991
BaseRepresentation
bin1011010010111…
…1001000010101
310022011002201111
42310233020111
544112111330
64411255021
71113500044
oct264571025
9108132644
1047378965
1124820577
1213a4a471
139a7b3ba
14641455b
15425d32a
hex2d2f215

47378965 has 8 divisors (see below), whose sum is σ = 59326848. Its totient is φ = 36255120.

The previous prime is 47378963. The next prime is 47378987. The reversal of 47378965 is 56987374.

It is a happy number.

47378965 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.

It is not a de Polignac number, because 47378965 - 21 = 47378963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47378963) 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 7 ways as a sum of consecutive naturals, for example, 205881 + ... + 206110.

It is an arithmetic number, because the mean of its divisors is an integer number (7415856).

Almost surely, 247378965 is an apocalyptic number.

It is an amenable number.

47378965 is a deficient number, since it is larger than the sum of its proper divisors (11947883).

47378965 is a wasteful number, since it uses less digits than its factorization.

47378965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412019.

The product of its digits is 1270080, while the sum is 49.

The square root of 47378965 is about 6883.2379735122. The cubic root of 47378965 is about 361.8499551137.

The spelling of 47378965 in words is "forty-seven million, three hundred seventy-eight thousand, nine hundred sixty-five".

Divisors: 1 5 23 115 411991 2059955 9475793 47378965