Search a number
-
+
31201013230 = 2511032828741
BaseRepresentation
bin11101000011101110…
…011010110111101110
32222112110012200210121
4131003232122313232
51002344424410410
622200013555154
72153122144102
oct350356326756
988473180717
1031201013230
1112261182052
1260691a5aba
132c3315280a
14171db5d902
15c292b49da
hex743b9adee

31201013230 has 16 divisors (see below), whose sum is σ = 56212761024. Its totient is φ = 12469085920.

The previous prime is 31201013209. The next prime is 31201013231. The reversal of 31201013230 is 3231010213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201013231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403341 + ... + 1425400.

It is an arithmetic number, because the mean of its divisors is an integer number (3513297564).

Almost surely, 231201013230 is an apocalyptic number.

31201013230 is a deficient number, since it is larger than the sum of its proper divisors (25011747794).

31201013230 is a wasteful number, since it uses less digits than its factorization.

31201013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829851.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31201013230 its reverse (3231010213), we get a palindrome (34432023443).

The spelling of 31201013230 in words is "thirty-one billion, two hundred one million, thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 1103 2206 5515 11030 2828741 5657482 14143705 28287410 3120101323 6240202646 15600506615 31201013230