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47968256 = 21272239
BaseRepresentation
bin1011011011111…
…1000000000000
310100021001002002
42312333000000
544234441011
64432043132
71121503100
oct266770000
9110231062
1047968256
1125093296
12140934a8
139c266ab
146529200
154327c3b
hex2dbf000

47968256 has 78 divisors (see below), whose sum is σ = 112052880. Its totient is φ = 20471808.

The previous prime is 47968231. The next prime is 47968267. The reversal of 47968256 is 65286974.

It is a self number, because there is not a number n which added to its sum of digits gives 47968256.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 200585 + ... + 200823.

Almost surely, 247968256 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 47968256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56026440).

47968256 is an abundant number, since it is smaller than the sum of its proper divisors (64084624).

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

47968256 is an equidigital number, since it uses as much as digits as its factorization.

47968256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 248 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 47968256 is about 6925.9119255157. The cubic root of 47968256 is about 363.3439860712.

The spelling of 47968256 in words is "forty-seven million, nine hundred sixty-eight thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 239 256 392 448 478 512 784 896 956 1024 1568 1673 1792 1912 2048 3136 3346 3584 3824 4096 6272 6692 7168 7648 11711 12544 13384 14336 15296 23422 25088 26768 28672 30592 46844 50176 53536 61184 93688 100352 107072 122368 187376 200704 214144 244736 374752 428288 489472 749504 856576 978944 1499008 1713152 2998016 3426304 5996032 6852608 11992064 23984128 47968256