Base | Representation |
---|---|
bin | 101001011000000… |
… | …1110100010001001 |
3 | 10120202110201021221 |
4 | 1102300032202021 |
5 | 10320410433103 |
6 | 345433402041 |
7 | 46255662025 |
oct | 12260164211 |
9 | 3522421257 |
10 | 1388374153 |
11 | 652779061 |
12 | 328b69321 |
13 | 19183ab8a |
14 | d2567385 |
15 | 81d4a1bd |
hex | 52c0e889 |
1388374153 has 16 divisors (see below), whose sum is σ = 1469366272. Its totient is φ = 1309770000.
The previous prime is 1388374151. The next prime is 1388374157. The reversal of 1388374153 is 3514738831.
It is a cyclic number.
It is not a de Polignac number, because 1388374153 - 21 = 1388374151 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (43).
It is not an unprimeable number, because it can be changed into a prime (1388374151) 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, 1320478 + ... + 1321528.
It is an arithmetic number, because the mean of its divisors is an integer number (91835392).
Almost surely, 21388374153 is an apocalyptic number.
It is an amenable number.
1388374153 is a deficient number, since it is larger than the sum of its proper divisors (80992119).
1388374153 is a wasteful number, since it uses less digits than its factorization.
1388374153 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2116.
The product of its digits is 241920, while the sum is 43.
The square root of 1388374153 is about 37260.8930784006. The cubic root of 1388374153 is about 1115.5837339736.
The spelling of 1388374153 in words is "one billion, three hundred eighty-eight million, three hundred seventy-four thousand, one hundred fifty-three".
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