Base | Representation |
---|---|
bin | 11100110111111111… |
… | …110010110100111010 |
3 | 2222000201221122100000 |
4 | 130313333302310322 |
5 | 1001444041204320 |
6 | 22124304253430 |
7 | 2145212462535 |
oct | 346777626472 |
9 | 88021848300 |
10 | 31004241210 |
11 | 121700a4348 |
12 | 6013311276 |
13 | 2c01458877 |
14 | 170197ba1c |
15 | c16d96c90 |
hex | 737ff2d3a |
31004241210 has 96 divisors (see below), whose sum is σ = 84207719232. Its totient is φ = 8207360640.
The previous prime is 31004241187. The next prime is 31004241227. The reversal of 31004241210 is 1214240013.
31004241210 is a `hidden beast` number, since 31 + 0 + 0 + 424 + 1 + 210 = 666.
It is a super-2 number, since 2×310042412102 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286345 + ... + 379475.
It is an arithmetic number, because the mean of its divisors is an integer number (877163742).
Almost surely, 231004241210 is an apocalyptic number.
31004241210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 31004241210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42103859616).
31004241210 is an abundant number, since it is smaller than the sum of its proper divisors (53203478022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31004241210 is a wasteful number, since it uses less digits than its factorization.
31004241210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93290 (or 93278 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 31004241210 its reverse (1214240013), we get a palindrome (32218481223).
The spelling of 31004241210 in words is "thirty-one billion, four million, two hundred forty-one thousand, two hundred ten".
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