Search a number
-
+
30442240131 = 367427135461
BaseRepresentation
bin11100010110011111…
…111011100010000011
32220120120110000210020
4130112133323202003
5444321203141011
621552430504523
72125246525452
oct342637734203
986516400706
1030442240131
1111a0193a646
125a97065143
132b41ba5a54
14168b086b99
15bd2883006
hex7167fb883

30442240131 has 16 divisors (see below), whose sum is σ = 41206276608. Its totient is φ = 19986674400.

The previous prime is 30442240063. The next prime is 30442240141. The reversal of 30442240131 is 13104224403.

It is not a de Polignac number, because 30442240131 - 227 = 30308022403 is a prime.

It is a super-2 number, since 2×304422401312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30442240141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840741 + ... + 876201.

It is an arithmetic number, because the mean of its divisors is an integer number (2575392288).

Almost surely, 230442240131 is an apocalyptic number.

30442240131 is a deficient number, since it is larger than the sum of its proper divisors (10764036477).

30442240131 is a wasteful number, since it uses less digits than its factorization.

30442240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39802.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30442240131 its reverse (13104224403), we get a palindrome (43546464534).

The spelling of 30442240131 in words is "thirty billion, four hundred forty-two million, two hundred forty thousand, one hundred thirty-one".

Divisors: 1 3 67 201 4271 12813 35461 106383 286157 858471 2375887 7127661 151453931 454361793 10147413377 30442240131