Base | Representation |
---|---|
bin | 11101010001100111… |
… | …101111001010111110 |
3 | 10000010200212212220020 |
4 | 131101213233022332 |
5 | 1003334120024043 |
6 | 22235102433010 |
7 | 2161652542011 |
oct | 352147571276 |
9 | 100120785806 |
10 | 31434142398 |
11 | 1237083248a |
12 | 6113292766 |
13 | 2c6c539179 |
14 | 1742ac7378 |
15 | c3e9b4e83 |
hex | 7519ef2be |
31434142398 has 16 divisors (see below), whose sum is σ = 62949624336. Its totient is φ = 10464490880.
The previous prime is 31434142367. The next prime is 31434142459. The reversal of 31434142398 is 89324143413.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3384123 + ... + 3393398.
It is an arithmetic number, because the mean of its divisors is an integer number (3934351521).
Almost surely, 231434142398 is an apocalyptic number.
31434142398 is an abundant number, since it is smaller than the sum of its proper divisors (31515481938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31434142398 is a wasteful number, since it uses less digits than its factorization.
31434142398 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6778299.
The product of its digits is 248832, while the sum is 42.
The spelling of 31434142398 in words is "thirty-one billion, four hundred thirty-four million, one hundred forty-two thousand, three hundred ninety-eight".
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