Base | Representation |
---|---|
bin | 10000110001100… |
… | …000011010101010 |
3 | 201121112021110110 |
4 | 100301200122222 |
5 | 1034020211130 |
6 | 43531355150 |
7 | 6654654624 |
oct | 2061403252 |
9 | 647467413 |
10 | 281413290 |
11 | 134939a74 |
12 | 7a2b2ab6 |
13 | 463c0a52 |
14 | 29535c14 |
15 | 19a8bab0 |
hex | 10c606aa |
281413290 has 32 divisors (see below), whose sum is σ = 678211776. Its totient is φ = 74730240.
The previous prime is 281413277. The next prime is 281413337. The reversal of 281413290 is 92314182.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12232 + ... + 26691.
It is an arithmetic number, because the mean of its divisors is an integer number (21194118).
Almost surely, 2281413290 is an apocalyptic number.
281413290 is an abundant number, since it is smaller than the sum of its proper divisors (396798486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
281413290 is a wasteful number, since it uses less digits than its factorization.
281413290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39174.
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 281413290 is about 16775.3774920268. The cubic root of 281413290 is about 655.3121213137.
The spelling of 281413290 in words is "two hundred eighty-one million, four hundred thirteen thousand, two hundred ninety".
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