Search a number
-
+
31104230340 = 22352503207113
BaseRepresentation
bin11100111101111101…
…001110001111000100
32222021201002121122010
4130331331032033010
51002200140332330
622142235334220
72150535411201
oct347575161704
988251077563
1031104230340
1112211588697
1260408b1370
132c19097431
141710d68ca8
15c20a483b0
hex73df4e3c4

31104230340 has 48 divisors (see below), whose sum is σ = 87127060608. Its totient is φ = 8291107584.

The previous prime is 31104230317. The next prime is 31104230359. The reversal of 31104230340 is 4303240113.

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, 46624 + ... + 253736.

It is an arithmetic number, because the mean of its divisors is an integer number (1815147096).

Almost surely, 231104230340 is an apocalyptic number.

31104230340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31104230340 is an abundant number, since it is smaller than the sum of its proper divisors (56022830268).

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

31104230340 is a wasteful number, since it uses less digits than its factorization.

31104230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209628 (or 209626 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31104230340 its reverse (4303240113), we get a palindrome (35407470453).

The spelling of 31104230340 in words is "thirty-one billion, one hundred four million, two hundred thirty thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2503 5006 7509 10012 12515 15018 25030 30036 37545 50060 75090 150180 207113 414226 621339 828452 1035565 1242678 2071130 2485356 3106695 4142260 6213390 12426780 518403839 1036807678 1555211517 2073615356 2592019195 3110423034 5184038390 6220846068 7776057585 10368076780 15552115170 31104230340