Search a number
-
+
31243113312124 = 2271489749379097
BaseRepresentation
bin1110001101010010110101…
…01010111010111101111100
311002121210221021201001022111
413012221122222322331330
513043341344001441444
6150240515455423404
76403145321243620
oct706513252727574
9132553837631274
1031243113312124
119a56147a5a70a
12360715b524b64
13145829cab581c
147a0263743180
15392a89974234
hex1c6a5aabaf7c

31243113312124 has 24 divisors (see below), whose sum is σ = 62528191937120. Its totient is φ = 13380913138176.

The previous prime is 31243113312119. The next prime is 31243113312133. The reversal of 31243113312124 is 42121331134213.

It is a super-2 number, since 2×312431133121242 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374647857 + ... + 374731240.

Almost surely, 231243113312124 is an apocalyptic number.

It is an amenable number.

31243113312124 is an abundant number, since it is smaller than the sum of its proper divisors (31285078624996).

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

31243113312124 is a wasteful number, since it uses less digits than its factorization.

31243113312124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749380597 (or 749380595 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

Adding to 31243113312124 its reverse (42121331134213), we get a palindrome (73364444446337).

The spelling of 31243113312124 in words is "thirty-one trillion, two hundred forty-three billion, one hundred thirteen million, three hundred twelve thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 1489 2978 5956 10423 20846 41692 749379097 1498758194 2997516388 5245653679 10491307358 20982614716 1115825475433 2231650950866 4463301901732 7810778328031 15621556656062 31243113312124