Base | Representation |
---|---|
bin | 10111001001000… |
… | …111010100100101 |
3 | 1000001120220210120 |
4 | 113021013110211 |
5 | 1243343442003 |
6 | 102305512153 |
7 | 12423125445 |
oct | 2711072445 |
9 | 1001526716 |
10 | 388265253 |
11 | 18a190482 |
12 | aa042659 |
13 | 6259326c |
14 | 397cc125 |
15 | 24146853 |
hex | 17247525 |
388265253 has 16 divisors (see below), whose sum is σ = 544622400. Its totient is φ = 245678720.
The previous prime is 388265249. The next prime is 388265257. The reversal of 388265253 is 352562883.
It is an interprime number because it is at equal distance from previous prime (388265249) and next prime (388265257).
It is not a de Polignac number, because 388265253 - 22 = 388265249 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388265257) 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, 32688 + ... + 42953.
It is an arithmetic number, because the mean of its divisors is an integer number (34038900).
Almost surely, 2388265253 is an apocalyptic number.
It is an amenable number.
388265253 is a deficient number, since it is larger than the sum of its proper divisors (156357147).
388265253 is a wasteful number, since it uses less digits than its factorization.
388265253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75732.
The product of its digits is 345600, while the sum is 42.
The square root of 388265253 is about 19704.4475436385. The cubic root of 388265253 is about 729.5294728513.
The spelling of 388265253 in words is "three hundred eighty-eight million, two hundred sixty-five thousand, two hundred fifty-three".
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