Base | Representation |
---|---|
bin | 110100000000001… |
… | …010100000110010 |
3 | 2020210200110210000 |
4 | 310000022200302 |
5 | 3241322131130 |
6 | 222323450430 |
7 | 30422526114 |
oct | 6400124062 |
9 | 2223613700 |
10 | 872458290 |
11 | 408530910 |
12 | 204226a16 |
13 | 10b9a2612 |
14 | 83c2b3b4 |
15 | 518db260 |
hex | 3400a832 |
872458290 has 80 divisors (see below), whose sum is σ = 2559237120. Its totient is φ = 211502880.
The previous prime is 872458277. The next prime is 872458331. The reversal of 872458290 is 92854278.
It is a super-2 number, since 2×8724582902 = 1522366935579448200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40050 + ... + 57869.
It is an arithmetic number, because the mean of its divisors is an integer number (31990464).
Almost surely, 2872458290 is an apocalyptic number.
872458290 is an abundant number, since it is smaller than the sum of its proper divisors (1686778830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
872458290 is a wasteful number, since it uses less digits than its factorization.
872458290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97949 (or 97940 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 872458290 is about 29537.4049300205. The cubic root of 872458290 is about 955.5385758105.
The spelling of 872458290 in words is "eight hundred seventy-two million, four hundred fifty-eight thousand, two hundred ninety".
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