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47989406 = 234769149
BaseRepresentation
bin1011011100010…
…0001010011110
310100022010002102
42313010022132
544241130111
64432325102
71121621543
oct267041236
9110263072
1047989406
11250a8173
12140a3792
139c331ca
146532bca
15432e13b
hex2dc429e

47989406 has 8 divisors (see below), whose sum is σ = 72192600. Its totient is φ = 23925208.

The previous prime is 47989399. The next prime is 47989411. The reversal of 47989406 is 60498974.

47989406 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 a congruent number.

It is an unprimeable number.

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, 33881 + ... + 35268.

It is an arithmetic number, because the mean of its divisors is an integer number (9024075).

Almost surely, 247989406 is an apocalyptic number.

47989406 is a deficient number, since it is larger than the sum of its proper divisors (24203194).

47989406 is a wasteful number, since it uses less digits than its factorization.

47989406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69498.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 47989406 is about 6927.4386319909. The cubic root of 47989406 is about 363.3973796887.

The spelling of 47989406 in words is "forty-seven million, nine hundred eighty-nine thousand, four hundred six".

Divisors: 1 2 347 694 69149 138298 23994703 47989406