Base | Representation |
---|---|
bin | 1000101000001… |
… | …00110001101110 |
3 | 12001011211202220 |
4 | 10110010301232 |
5 | 122011340220 |
6 | 11103100210 |
7 | 1536101034 |
oct | 424046156 |
9 | 161154686 |
10 | 72371310 |
11 | 37940700 |
12 | 202a1666 |
13 | 11cbbc7b |
14 | 987c554 |
15 | 6548540 |
hex | 4504c6e |
72371310 has 48 divisors (see below), whose sum is σ = 190926288. Its totient is φ = 17543680.
The previous prime is 72371309. The next prime is 72371357. The reversal of 72371310 is 1317327.
It is a super-3 number, since 3×723713103 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6339 + ... + 13598.
It is an arithmetic number, because the mean of its divisors is an integer number (3977631).
Almost surely, 272371310 is an apocalyptic number.
72371310 is an abundant number, since it is smaller than the sum of its proper divisors (118554978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72371310 is a wasteful number, since it uses less digits than its factorization.
72371310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19969 (or 19958 counting only the distinct ones).
The product of its (nonzero) digits is 882, while the sum is 24.
The square root of 72371310 is about 8507.1328895228. The cubic root of 72371310 is about 416.7306831418.
Adding to 72371310 its reverse (1317327), we get a palindrome (73688637).
The spelling of 72371310 in words is "seventy-two million, three hundred seventy-one thousand, three hundred ten".
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