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47388848 = 24131371663
BaseRepresentation
bin1011010011000…
…1100010110000
310022011121021112
42310301202300
544112420343
64411412452
71113540623
oct264614260
9108147245
1047388848
1124827a41
1213a54128
139a82a50
146417dba
154261218
hex2d318b0

47388848 has 40 divisors (see below), whose sum is σ = 99660288. Its totient is φ = 21699072.

The previous prime is 47388841. The next prime is 47388917. The reversal of 47388848 is 84888374.

It is a junction number, because it is equal to n+sod(n) for n = 47388796 and 47388805.

It is not an unprimeable number, because it can be changed into a prime (47388841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27665 + ... + 29327.

Almost surely, 247388848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47388848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49830144).

47388848 is an abundant number, since it is smaller than the sum of its proper divisors (52271440).

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

47388848 is a wasteful number, since it uses less digits than its factorization.

47388848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1815 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The square root of 47388848 is about 6883.9558394865. The cubic root of 47388848 is about 361.8751133562.

The spelling of 47388848 in words is "forty-seven million, three hundred eighty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 52 104 137 208 274 548 1096 1663 1781 2192 3326 3562 6652 7124 13304 14248 21619 26608 28496 43238 86476 172952 227831 345904 455662 911324 1822648 2961803 3645296 5923606 11847212 23694424 47388848