Base | Representation |
---|---|
bin | 101111110111001… |
… | …100011000011110 |
3 | 2001221222111212220 |
4 | 233313030120132 |
5 | 3121031412130 |
6 | 211403010210 |
7 | 25620240300 |
oct | 5767143036 |
9 | 2057874786 |
10 | 802997790 |
11 | 3822a9141 |
12 | 1a4b09966 |
13 | ca49252a |
14 | 78909970 |
15 | 4a76a410 |
hex | 2fdcc61e |
802997790 has 96 divisors (see below), whose sum is σ = 2255952384. Its totient is φ = 182387520.
The previous prime is 802997761. The next prime is 802997809. The reversal of 802997790 is 97799208.
It is a happy number.
It is a super-3 number, since 3×8029977903 (a number of 28 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243855 + ... + 247125.
It is an arithmetic number, because the mean of its divisors is an integer number (23499504).
Almost surely, 2802997790 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 802997790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1127976192).
802997790 is an abundant number, since it is smaller than the sum of its proper divisors (1452954594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
802997790 is a wasteful number, since it uses less digits than its factorization.
802997790 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3462 (or 3455 counting only the distinct ones).
The product of its (nonzero) digits is 571536, while the sum is 51.
The square root of 802997790 is about 28337.2156359795. The cubic root of 802997790 is about 929.4758637525.
The spelling of 802997790 in words is "eight hundred two million, nine hundred ninety-seven thousand, seven hundred ninety".
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