Search a number
-
+
47730380 = 2254750777
BaseRepresentation
bin1011011000010…
…0111011001100
310022210221202212
42312010323030
544204333010
64423005552
71116462425
oct266047314
9108727685
1047730380
1124a405a5
1213b998b8
139b72339
1464a664c
1542cc505
hex2d84ecc

47730380 has 24 divisors (see below), whose sum is σ = 102368448. Its totient is φ = 18685568.

The previous prime is 47730377. The next prime is 47730401. The reversal of 47730380 is 8303774.

47730380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24449 + ... + 26328.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 247730380 is an apocalyptic number.

It is an amenable number.

47730380 is an abundant number, since it is smaller than the sum of its proper divisors (54638068).

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

47730380 is a wasteful number, since it uses less digits than its factorization.

47730380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50833 (or 50831 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 47730380 is about 6908.7176813067. The cubic root of 47730380 is about 362.7423793201.

The spelling of 47730380 in words is "forty-seven million, seven hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 50777 101554 203108 253885 507770 1015540 2386519 4773038 9546076 11932595 23865190 47730380