Base | Representation |
---|---|
bin | 100001100110001111… |
… | …0011011110101101110 |
3 | 20220020020222010020001 |
4 | 1003030132123311232 |
5 | 2140230400212100 |
6 | 53051213014514 |
7 | 5132641641034 |
oct | 1031436336556 |
9 | 226206863201 |
10 | 72150007150 |
11 | 28664886291 |
12 | 11b96a8443a |
13 | 6a5a9c3c30 |
14 | 36c639c554 |
15 | 1d24254d6a |
hex | 10cc79bd6e |
72150007150 has 48 divisors (see below), whose sum is σ = 145248516000. Its totient is φ = 26506085760.
The previous prime is 72150007147. The next prime is 72150007151. The reversal of 72150007150 is 5170005127.
It is a super-2 number, since 2×721500071502 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72150007151) 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, 149545 + ... + 408244.
It is an arithmetic number, because the mean of its divisors is an integer number (3026010750).
Almost surely, 272150007150 is an apocalyptic number.
72150007150 is an abundant number, since it is smaller than the sum of its proper divisors (73098508850).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72150007150 is a wasteful number, since it uses less digits than its factorization.
72150007150 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 558013 (or 558008 counting only the distinct ones).
The product of its (nonzero) digits is 2450, while the sum is 28.
The spelling of 72150007150 in words is "seventy-two billion, one hundred fifty million, seven thousand, one hundred fifty".
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