Search a number
-
+
31100040404124 = 22319218069625507
BaseRepresentation
bin1110001001001000010101…
…10111000101110010011100
311002010010122021210021020220
413010210022313011302130
513034020340320412444
6150051054502441340
76356621664504066
oct704441267056234
9132103567707226
1031100040404124
119a004a903928a
1235a3490733250
13144794b6c2c93
1479736dd70736
1538deb40ab619
hex1c490adc5c9c

31100040404124 has 48 divisors (see below), whose sum is σ = 76386536553600. Its totient is φ = 9821004653376.

The previous prime is 31100040404119. The next prime is 31100040404131. The reversal of 31100040404124 is 42140404000113.

It is a junction number, because it is equal to n+sod(n) for n = 31100040404094 and 31100040404103.

It is a congruent number.

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, 49406979 + ... + 50032485.

It is an arithmetic number, because the mean of its divisors is an integer number (1591386178200).

Almost surely, 231100040404124 is an apocalyptic number.

It is an amenable number.

31100040404124 is an abundant number, since it is smaller than the sum of its proper divisors (45286496149476).

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

31100040404124 is a wasteful number, since it uses less digits than its factorization.

31100040404124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843602 (or 843600 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31100040404124 its reverse (42140404000113), we get a palindrome (73240444404237).

The spelling of 31100040404124 in words is "thirty-one trillion, one hundred billion, forty million, four hundred four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 218069 436138 625507 654207 872276 1251014 1308414 1876521 2502028 2616828 3753042 4143311 7506084 8286622 11884633 12429933 16573244 23769266 24859866 35653899 47538532 49719732 71307798 142615596 136403685983 272807371966 409211057949 545614743932 818422115898 1636844231796 2591670033677 5183340067354 7775010101031 10366680134708 15550020202062 31100040404124