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47883940 = 22513434283
BaseRepresentation
bin1011011010101…
…0011010100100
310100002202102021
42312222122210
544224241230
64430152524
71121002216
oct266523244
9110082367
1047883940
1125035a05
1214052744
139bc71c0
1465065b6
15430cc7a
hex2daa6a4

47883940 has 48 divisors (see below), whose sum is σ = 110835648. Its totient is φ = 17265024.

The previous prime is 47883881. The next prime is 47883949. The reversal of 47883940 is 4938874.

47883940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (47883949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9039 + ... + 13321.

It is an arithmetic number, because the mean of its divisors is an integer number (2309076).

Almost surely, 247883940 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 47883940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55417824).

47883940 is an abundant number, since it is smaller than the sum of its proper divisors (62951708).

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

47883940 is a wasteful number, since it uses less digits than its factorization.

47883940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348 (or 4346 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 47883940 is about 6919.8222520524. The cubic root of 47883940 is about 363.1309724272.

The spelling of 47883940 in words is "forty-seven million, eight hundred eighty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 43 52 65 86 130 172 215 260 430 559 860 1118 2236 2795 4283 5590 8566 11180 17132 21415 42830 55679 85660 111358 184169 222716 278395 368338 556790 736676 920845 1113580 1841690 2394197 3683380 4788394 9576788 11970985 23941970 47883940