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47963478 = 237993913
BaseRepresentation
bin1011011011110…
…1110101010110
310100020210112010
42312331311112
544234312403
64432005050
71121453133
oct266756526
9110223463
1047963478
112508a742
1214090786
139c24474
14652758a
154326603
hex2dbdd56

47963478 has 8 divisors (see below), whose sum is σ = 95926968. Its totient is φ = 15987824.

The previous prime is 47963471. The next prime is 47963483. The reversal of 47963478 is 87436974.

It is a happy number.

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

47963478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47963471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3996951 + ... + 3996962.

It is an arithmetic number, because the mean of its divisors is an integer number (11990871).

Almost surely, 247963478 is an apocalyptic number.

47963478 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.

47963478 is a wasteful number, since it uses less digits than its factorization.

47963478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7993918.

The product of its digits is 1016064, while the sum is 48.

The square root of 47963478 is about 6925.5669803995. The cubic root of 47963478 is about 363.3319217370.

The spelling of 47963478 in words is "forty-seven million, nine hundred sixty-three thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 7993913 15987826 23981739 47963478