Base | Representation |
---|---|
bin | 1101000111100101… |
… | …11000000110100100 |
3 | 200011211121222200000 |
4 | 12203302320012210 |
5 | 103411001144000 |
6 | 3122511421300 |
7 | 336350301000 |
oct | 64362700644 |
9 | 20154558600 |
10 | 7042990500 |
11 | 2a94648007 |
12 | 1446824830 |
13 | 8831a8a00 |
14 | 4ab54b700 |
15 | 2b34ac000 |
hex | 1a3cb81a4 |
7042990500 has 864 divisors, whose sum is σ = 29096121600. Its totient is φ = 1485993600.
The previous prime is 7042990457. The next prime is 7042990501. The reversal of 7042990500 is 50992407.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (7042990501) by changing a digit.
It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 541768494 + ... + 541768506.
Almost surely, 27042990500 is an apocalyptic number.
7042990500 is a gapful number since it is divisible by the number (70) 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 7042990500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14548060800).
7042990500 is an abundant number, since it is smaller than the sum of its proper divisors (22053131100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7042990500 is a wasteful number, since it uses less digits than its factorization.
7042990500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 81 (or 30 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 36.
The square root of 7042990500 is about 83922.5267732091. The cubic root of 7042990500 is about 1916.8392820803.
The spelling of 7042990500 in words is "seven billion, forty-two million, nine hundred ninety thousand, five hundred".
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