Base | Representation |
---|---|
bin | 11101001011111000… |
… | …010101011001110000 |
3 | 2222212222122201010101 |
4 | 131023320111121300 |
5 | 1003134441030000 |
6 | 22221342242144 |
7 | 2156403105601 |
oct | 351370253160 |
9 | 88788581111 |
10 | 31337830000 |
11 | 1232142a564 |
12 | 60a6b86354 |
13 | 2c555b6c99 |
14 | 1733db5da8 |
15 | c362dce6a |
hex | 74be15670 |
31337830000 has 50 divisors (see below), whose sum is σ = 75872044424. Its totient is φ = 12535128000.
The previous prime is 31337829989. The next prime is 31337830003. The reversal of 31337830000 is 3873313.
It is a tau number, because it is divible by the number of its divisors (50).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31337830003) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1556892 + ... + 1576891.
Almost surely, 231337830000 is an apocalyptic number.
It is an amenable number.
31337830000 is an abundant number, since it is smaller than the sum of its proper divisors (44534214424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31337830000 is an equidigital number, since it uses as much as digits as its factorization.
31337830000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3133811 (or 3133790 counting only the distinct ones).
The product of its (nonzero) digits is 4536, while the sum is 28.
The spelling of 31337830000 in words is "thirty-one billion, three hundred thirty-seven million, eight hundred thirty thousand".
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