Base | Representation |
---|---|
bin | 1000000101100110… |
… | …1011000001111000 |
3 | 12121022002202101102 |
4 | 2001121223001320 |
5 | 13421233200322 |
6 | 555231510532 |
7 | 104541054662 |
oct | 20131530170 |
9 | 5538082342 |
10 | 2170990712 |
11 | a14516500 |
12 | 507088448 |
13 | 287a155b7 |
14 | 168489532 |
15 | ca8db792 |
hex | 8166b078 |
2170990712 has 48 divisors (see below), whose sum is σ = 4737534480. Its totient is φ = 928759040.
The previous prime is 2170990697. The next prime is 2170990739.
2170990712 is nontrivially palindromic in base 10.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49508 + ... + 82419.
It is an arithmetic number, because the mean of its divisors is an integer number (98698635).
Almost surely, 22170990712 is an apocalyptic number.
2170990712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
2170990712 is an abundant number, since it is smaller than the sum of its proper divisors (2566543768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2170990712 is a wasteful number, since it uses less digits than its factorization.
2170990712 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131972 (or 131957 counting only the distinct ones).
The product of its (nonzero) digits is 15876, while the sum is 38.
The square root of 2170990712 is about 46593.8913592758. The cubic root of 2170990712 is about 1294.8495846526.
The spelling of 2170990712 in words is "two billion, one hundred seventy million, nine hundred ninety thousand, seven hundred twelve".
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