Base | Representation |
---|---|
bin | 11101010001011000… |
… | …010100010010100010 |
3 | 10000010102021111221121 |
4 | 131101120110102202 |
5 | 1003332101201010 |
6 | 22234440042454 |
7 | 2161603304662 |
oct | 352130242242 |
9 | 100112244847 |
10 | 31430100130 |
11 | 12369521470 |
12 | 6111a6342a |
13 | 2c6b7522b0 |
14 | 17423541a2 |
15 | c3e4673da |
hex | 7516144a2 |
31430100130 has 32 divisors (see below), whose sum is σ = 66464774208. Its totient is φ = 10549963200.
The previous prime is 31430100113. The next prime is 31430100131. The reversal of 31430100130 is 3100103413.
It is not an unprimeable number, because it can be changed into a prime (31430100131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10988116 + ... + 10990975.
It is an arithmetic number, because the mean of its divisors is an integer number (2077024194).
Almost surely, 231430100130 is an apocalyptic number.
31430100130 is an abundant number, since it is smaller than the sum of its proper divisors (35034674078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31430100130 is a wasteful number, since it uses less digits than its factorization.
31430100130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21979122.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31430100130 its reverse (3100103413), we get a palindrome (34530203543).
The spelling of 31430100130 in words is "thirty-one billion, four hundred thirty million, one hundred thousand, one hundred thirty".
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