Base | Representation |
---|---|
bin | 111010011101001… |
… | …111011000101000 |
3 | 2112100102221110111 |
4 | 322131033120220 |
5 | 4002032244340 |
6 | 241152424104 |
7 | 33206120065 |
oct | 7235173050 |
9 | 2470387414 |
10 | 980743720 |
11 | 463671300 |
12 | 234548034 |
13 | 128257438 |
14 | 94377c6c |
15 | 5b17aaea |
hex | 3a74f628 |
980743720 has 96 divisors (see below), whose sum is σ = 2451695400. Its totient is φ = 352788480.
The previous prime is 980743697. The next prime is 980743723. The reversal of 980743720 is 27347089.
It can be written as a sum of positive squares in 4 ways, for example, as 909746244 + 70997476 = 30162^2 + 8426^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (980743723) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468436 + ... + 470524.
Almost surely, 2980743720 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 980743720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225847700).
980743720 is an abundant number, since it is smaller than the sum of its proper divisors (1470951680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
980743720 is a wasteful number, since it uses less digits than its factorization.
980743720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2219 (or 2204 counting only the distinct ones).
The product of its (nonzero) digits is 84672, while the sum is 40.
The square root of 980743720 is about 31316.8280641575. The cubic root of 980743720 is about 993.5395930207.
The spelling of 980743720 in words is "nine hundred eighty million, seven hundred forty-three thousand, seven hundred twenty".
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