Base | Representation |
---|---|
bin | 101000100111100110… |
… | …0101100100011001110 |
3 | 22100011002000021202110 |
4 | 1101033030230203032 |
5 | 2412120341333230 |
6 | 104023320204450 |
7 | 6205410253125 |
oct | 1211714544316 |
9 | 270132007673 |
10 | 87228074190 |
11 | 33aa1a79214 |
12 | 14aa4609726 |
13 | 82c17745aa |
14 | 4316b04abc |
15 | 2407d3a4b0 |
hex | 144f32c8ce |
87228074190 has 16 divisors (see below), whose sum is σ = 209347378128. Its totient is φ = 23260819776.
The previous prime is 87228074189. The next prime is 87228074207. The reversal of 87228074190 is 9147082278.
It is a super-2 number, since 2×872280741902 (a number of 23 digits) contains 22 as substring.
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, 1453801207 + ... + 1453801266.
It is an arithmetic number, because the mean of its divisors is an integer number (13084211133).
Almost surely, 287228074190 is an apocalyptic number.
87228074190 is an abundant number, since it is smaller than the sum of its proper divisors (122119303938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87228074190 is a wasteful number, since it uses less digits than its factorization.
87228074190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2907602483.
The product of its (nonzero) digits is 451584, while the sum is 48.
The spelling of 87228074190 in words is "eighty-seven billion, two hundred twenty-eight million, seventy-four thousand, one hundred ninety".
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