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47984256 = 2732231811
BaseRepresentation
bin1011011100001…
…0111010000000
310100021212000200
42313002322000
544240444011
64432245200
71121600535
oct267027200
9110255020
1047984256
11250a4311
12140a0800
139c30a68
146530d8c
15432c856
hex2dc2e80

47984256 has 96 divisors (see below), whose sum is σ = 144162720. Its totient is φ = 15290880.

The previous prime is 47984219. The next prime is 47984263. The reversal of 47984256 is 65248974.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25591 + ... + 27401.

It is an arithmetic number, because the mean of its divisors is an integer number (1501695).

Almost surely, 247984256 is an apocalyptic number.

47984256 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47984256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72081360).

47984256 is an abundant number, since it is smaller than the sum of its proper divisors (96178464).

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

47984256 is a wasteful number, since it uses less digits than its factorization.

47984256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1839 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 47984256 is about 6927.0669117600. The cubic root of 47984256 is about 363.3843798510.

The spelling of 47984256 in words is "forty-seven million, nine hundred eighty-four thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 64 69 72 92 96 128 138 144 184 192 207 276 288 368 384 414 552 576 736 828 1104 1152 1472 1656 1811 2208 2944 3312 3622 4416 5433 6624 7244 8832 10866 13248 14488 16299 21732 26496 28976 32598 41653 43464 57952 65196 83306 86928 115904 124959 130392 166612 173856 231808 249918 260784 333224 347712 374877 499836 521568 666448 695424 749754 999672 1043136 1332896 1499508 1999344 2086272 2665792 2999016 3998688 5331584 5998032 7997376 11996064 15994752 23992128 47984256