Base | Representation |
---|---|
bin | 11101110000010001… |
… | …111001101100110010 |
3 | 10001110112202120102002 |
4 | 131300101321230302 |
5 | 1010412304341200 |
6 | 22402115254002 |
7 | 2210466605000 |
oct | 356021715462 |
9 | 101415676362 |
10 | 31948512050 |
11 | 12605113a74 |
12 | 62375aa302 |
13 | 3021c82a00 |
14 | 179113da70 |
15 | c6ec1abd5 |
hex | 770479b32 |
31948512050 has 288 divisors, whose sum is σ = 76571884800. Its totient is φ = 9906624000.
The previous prime is 31948512023. The next prime is 31948512067. The reversal of 31948512050 is 5021584913.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 31948511995 and 31948512013.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 211579475 + ... + 211579625.
It is an arithmetic number, because the mean of its divisors is an integer number (265874600).
Almost surely, 231948512050 is an apocalyptic number.
31948512050 is an abundant number, since it is smaller than the sum of its proper divisors (44623372750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31948512050 is a wasteful number, since it uses less digits than its factorization.
31948512050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 283 (or 251 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 38.
The spelling of 31948512050 in words is "thirty-one billion, nine hundred forty-eight million, five hundred twelve thousand, fifty".
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