Search a number
-
+
103131212011232 = 254315974673889
BaseRepresentation
bin10111011100110000011011…
…010000011101011011100000
3111112011020200111010121012112
4113130300123100131123200
5102004200210233324412
61003201454051014452
730502661401116206
oct2734603320353340
9445136614117175
10103131212011232
112a951779611a59
12b69762a29a428
134571301988c82
141b6781214d076
15bdca2d486722
hex5dcc1b41d6e0

103131212011232 has 24 divisors (see below), whose sum is σ = 203044280821200. Its totient is φ = 51564410532864.

The previous prime is 103131212011213. The next prime is 103131212011249. The reversal of 103131212011232 is 232110212131301.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 103131212011198 and 103131212011207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35955857 + ... + 38718032.

It is an arithmetic number, because the mean of its divisors is an integer number (8460178367550).

Almost surely, 2103131212011232 is an apocalyptic number.

It is an amenable number.

103131212011232 is a deficient number, since it is larger than the sum of its proper divisors (99913068809968).

103131212011232 is an equidigital number, since it uses as much as digits as its factorization.

103131212011232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74717058 (or 74717050 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 103131212011232 its reverse (232110212131301), we get a palindrome (335241424142533).

The spelling of 103131212011232 in words is "one hundred three trillion, one hundred thirty-one billion, two hundred twelve million, eleven thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 43159 86318 172636 345272 690544 1381088 74673889 149347778 298695556 597391112 1194782224 2389564448 3222850375351 6445700750702 12891401501404 25782803002808 51565606005616 103131212011232