Search a number
-
+
47906208 = 25337892
BaseRepresentation
bin1011011010111…
…1110110100000
310100010212222000
42312233312200
544230444313
64430444000
71121124150
oct266576640
9110125860
1047906208
1125050709
1214063600
139c0438c
146510760
154314673
hex2dafda0

47906208 has 144 divisors (see below), whose sum is σ = 161501760. Its totient is φ = 13533696.

The previous prime is 47906203. The next prime is 47906213. The reversal of 47906208 is 80260974.

It is an interprime number because it is at equal distance from previous prime (47906203) and next prime (47906213).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47906203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 538228 + ... + 538316.

It is an arithmetic number, because the mean of its divisors is an integer number (1121540).

Almost surely, 247906208 is an apocalyptic number.

47906208 is a gapful number since it is divisible by the number (48) 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 47906208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80750880).

47906208 is an abundant number, since it is smaller than the sum of its proper divisors (113595552).

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

47906208 is an equidigital number, since it uses as much as digits as its factorization.

47906208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 47906208 is about 6921.4310658996. The cubic root of 47906208 is about 363.1872539790.

Multiplying 47906208 by its product of nonzero digits (24192), we get a square (1158946983936 = 10765442).

The spelling of 47906208 in words is "forty-seven million, nine hundred six thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 89 96 108 112 126 144 168 178 189 216 224 252 267 288 336 356 378 432 504 534 623 672 712 756 801 864 1008 1068 1246 1424 1512 1602 1869 2016 2136 2403 2492 2848 3024 3204 3738 4272 4806 4984 5607 6048 6408 7476 7921 8544 9612 9968 11214 12816 14952 15842 16821 19224 19936 22428 23763 25632 29904 31684 33642 38448 44856 47526 55447 59808 63368 67284 71289 76896 89712 95052 110894 126736 134568 142578 166341 179424 190104 213867 221788 253472 269136 285156 332682 380208 427734 443576 499023 538272 570312 665364 760416 855468 887152 998046 1140624 1330728 1497069 1710936 1774304 1996092 2281248 2661456 2994138 3421872 3992184 5322912 5988276 6843744 7984368 11976552 15968736 23953104 47906208