Search a number
-
+
538472930 = 25191281923
BaseRepresentation
bin100000000110000…
…111000111100010
31101112020020222212
4200012013013202
52100322113210
6125233202122
716225641632
oct4006070742
91345206885
10538472930
11256a54756
12130400342
1387735848
145172c6c2
1532417805
hex201871e2

538472930 has 16 divisors (see below), whose sum is σ = 974329344. Its totient is φ = 214260720.

The previous prime is 538472923. The next prime is 538472933. The reversal of 538472930 is 39274835.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538472933) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 139052 + ... + 142871.

It is an arithmetic number, because the mean of its divisors is an integer number (60895584).

Almost surely, 2538472930 is an apocalyptic number.

538472930 is a deficient number, since it is larger than the sum of its proper divisors (435856414).

538472930 is a wasteful number, since it uses less digits than its factorization.

538472930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282121.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 538472930 is about 23205.0195000995. The cubic root of 538472930 is about 813.5569480924.

The spelling of 538472930 in words is "five hundred thirty-eight million, four hundred seventy-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 191 382 955 1910 281923 563846 1409615 2819230 53847293 107694586 269236465 538472930