Base | Representation |
---|---|
bin | 101010100111111… |
… | …0111000001011000 |
3 | 10200200012202020000 |
4 | 1111033313001120 |
5 | 10412114032023 |
6 | 353530333000 |
7 | 50304451125 |
oct | 12517670130 |
9 | 3620182200 |
10 | 1430220888 |
11 | 674360138 |
12 | 33ab8a160 |
13 | 19a400165 |
14 | d7d3b74c |
15 | 85864243 |
hex | 553f7058 |
1430220888 has 80 divisors (see below), whose sum is σ = 4073949000. Its totient is φ = 468647424.
The previous prime is 1430220881. The next prime is 1430220889. The reversal of 1430220888 is 8880220341.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1430220881) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19528 + ... + 56936.
Almost surely, 21430220888 is an apocalyptic number.
1430220888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1430220888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2036974500).
1430220888 is an abundant number, since it is smaller than the sum of its proper divisors (2643728112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1430220888 is a wasteful number, since it uses less digits than its factorization.
1430220888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37486 (or 37473 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 36.
The square root of 1430220888 is about 37818.2613032381. The cubic root of 1430220888 is about 1126.6811770984.
The spelling of 1430220888 in words is "one billion, four hundred thirty million, two hundred twenty thousand, eight hundred eighty-eight".
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