Search a number
-
+
47820276 = 22327227109
BaseRepresentation
bin1011011001101…
…0110111110100
310022222112002100
42312122313310
544220222101
64424542100
71120315500
oct266326764
9108875070
1047820276
1124aa2099
1214021930
139ba422a
1464cb300
1542e8e86
hex2d9adf4

47820276 has 54 divisors (see below), whose sum is σ = 140619570. Its totient is φ = 13662432.

The previous prime is 47820271. The next prime is 47820277. The reversal of 47820276 is 67202874.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 10732176 = 6090^2 + 3276^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 47820276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47820271) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11791 + ... + 15318.

Almost surely, 247820276 is an apocalyptic number.

It is an amenable number.

47820276 is an abundant number, since it is smaller than the sum of its proper divisors (92799294).

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

47820276 is a wasteful number, since it uses less digits than its factorization.

47820276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27133 (or 27121 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 47820276 is about 6915.2206038564. The cubic root of 47820276 is about 362.9699676905.

The spelling of 47820276 in words is "forty-seven million, eight hundred twenty thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 27109 54218 81327 108436 162654 189763 243981 325308 379526 487962 569289 759052 975924 1138578 1328341 1707867 2277156 2656682 3415734 3985023 5313364 6831468 7970046 11955069 15940092 23910138 47820276