Base | Representation |
---|---|
bin | 100000101100111000… |
… | …1111001010111011110 |
3 | 20201021011002122211120 |
4 | 1001121301321113132 |
5 | 2122310241311430 |
6 | 52132233031410 |
7 | 5034154563444 |
oct | 1013161712736 |
9 | 221234078746 |
10 | 70225728990 |
11 | 2786765865a |
12 | 1173a555566 |
13 | 681213c8c1 |
14 | 35829b4b94 |
15 | 1c6034d610 |
hex | 1059c795de |
70225728990 has 32 divisors (see below), whose sum is σ = 168595702560. Its totient is φ = 18720866304.
The previous prime is 70225728973. The next prime is 70225728997. The reversal of 70225728990 is 9982752207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70225728997) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278995 + ... + 467214.
It is an arithmetic number, because the mean of its divisors is an integer number (5268615705).
Almost surely, 270225728990 is an apocalyptic number.
70225728990 is an abundant number, since it is smaller than the sum of its proper divisors (98369973570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70225728990 is a wasteful number, since it uses less digits than its factorization.
70225728990 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 749356.
The product of its (nonzero) digits is 1270080, while the sum is 51.
The spelling of 70225728990 in words is "seventy billion, two hundred twenty-five million, seven hundred twenty-eight thousand, nine hundred ninety".
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