Search a number
-
+
31230030010 = 2519756121739
BaseRepresentation
bin11101000101011101…
…000111000010111010
32222121110210220100011
4131011131013002322
51002424341430020
622202531532134
72153623606114
oct350535070272
988543726304
1031230030010
11122765a0863
126076a5a04a
132c391720ca
1417239543b4
15c2bae735a
hex7457470ba

31230030010 has 32 divisors (see below), whose sum is σ = 59183236800. Its totient is φ = 11832428160.

The previous prime is 31230030001. The next prime is 31230030053. The reversal of 31230030010 is 1003003213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425721 + ... + 1447459.

It is an arithmetic number, because the mean of its divisors is an integer number (1849476150).

Almost surely, 231230030010 is an apocalyptic number.

31230030010 is a deficient number, since it is larger than the sum of its proper divisors (27953206790).

31230030010 is a wasteful number, since it uses less digits than its factorization.

31230030010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29326.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31230030010 its reverse (1003003213), we get a palindrome (32233033223).

The spelling of 31230030010 in words is "thirty-one billion, two hundred thirty million, thirty thousand, ten".

Divisors: 1 2 5 10 19 38 95 190 7561 15122 21739 37805 43478 75610 108695 143659 217390 287318 413041 718295 826082 1436590 2065205 4130410 164368579 328737158 821842895 1643685790 3123003001 6246006002 15615015005 31230030010