Base | Representation |
---|---|
bin | 11101010111011110… |
… | …011111000111000000 |
3 | 10000101112201220101110 |
4 | 131113132133013000 |
5 | 1004034242134413 |
6 | 22252532203320 |
7 | 2164254545541 |
oct | 352736370700 |
9 | 100345656343 |
10 | 31532380608 |
11 | 12411230293 |
12 | 6140169540 |
13 | 2c869b3aa1 |
14 | 1751b7a4c8 |
15 | c4841c8c3 |
hex | 75779f1c0 |
31532380608 has 224 divisors, whose sum is σ = 87707492352. Its totient is φ = 9986457600.
The previous prime is 31532380603. The next prime is 31532380619. The reversal of 31532380608 is 80608323513.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31532380603) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116355513 + ... + 116355783.
Almost surely, 231532380608 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31532380608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43853746176).
31532380608 is an abundant number, since it is smaller than the sum of its proper divisors (56175111744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31532380608 is a wasteful number, since it uses less digits than its factorization.
31532380608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 603 (or 593 counting only the distinct ones).
The product of its (nonzero) digits is 103680, while the sum is 39.
The spelling of 31532380608 in words is "thirty-one billion, five hundred thirty-two million, three hundred eighty thousand, six hundred eight".
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