Base | Representation |
---|---|
bin | 101001011000000… |
… | …1011110101111010 |
3 | 10120202110011011200 |
4 | 1102300023311322 |
5 | 10320410110010 |
6 | 345433235030 |
7 | 46255614630 |
oct | 12260136572 |
9 | 3522404150 |
10 | 1388363130 |
11 | 652770850 |
12 | 328b62a76 |
13 | 191835b5b |
14 | d2563350 |
15 | 81d46cc0 |
hex | 52c0bd7a |
1388363130 has 96 divisors (see below), whose sum is σ = 4500482688. Its totient is φ = 288489600.
The previous prime is 1388363107. The next prime is 1388363131. The reversal of 1388363130 is 313638831.
1388363130 is a `hidden beast` number, since 13 + 8 + 8 + 3 + 631 + 3 + 0 = 666.
1388363130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (1388363131) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93241 + ... + 107100.
It is an arithmetic number, because the mean of its divisors is an integer number (46880028).
Almost surely, 21388363130 is an apocalyptic number.
1388363130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1388363130 is an abundant number, since it is smaller than the sum of its proper divisors (3112119558).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1388363130 is a wasteful number, since it uses less digits than its factorization.
1388363130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 200372 (or 200369 counting only the distinct ones).
The product of its (nonzero) digits is 31104, while the sum is 36.
The square root of 1388363130 is about 37260.7451616309. The cubic root of 1388363130 is about 1115.5807815725.
The spelling of 1388363130 in words is "one billion, three hundred eighty-eight million, three hundred sixty-three thousand, one hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •