Base | Representation |
---|---|
bin | 101010101001011… |
… | …1100100101101000 |
3 | 10200201201212021120 |
4 | 1111102330211220 |
5 | 10412320430440 |
6 | 353555535240 |
7 | 50314361322 |
oct | 12522744550 |
9 | 3621655246 |
10 | 1431030120 |
11 | 674863123 |
12 | 33b2ba520 |
13 | 19a6245b0 |
14 | d80ac612 |
15 | 85973dd0 |
hex | 554bc968 |
1431030120 has 64 divisors (see below), whose sum is σ = 4623333120. Its totient is φ = 352253184.
The previous prime is 1431030109. The next prime is 1431030137. The reversal of 1431030120 is 210301341.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 1431030120.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457104 + ... + 460223.
It is an arithmetic number, because the mean of its divisors is an integer number (72239580).
Almost surely, 21431030120 is an apocalyptic number.
1431030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1431030120 is an abundant number, since it is smaller than the sum of its proper divisors (3192303000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1431030120 is a wasteful number, since it uses less digits than its factorization.
1431030120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 917354 (or 917350 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1431030120 is about 37828.9587485566. The cubic root of 1431030120 is about 1126.8936325230.
Adding to 1431030120 its reverse (210301341), we get a palindrome (1641331461).
The spelling of 1431030120 in words is "one billion, four hundred thirty-one million, thirty thousand, one hundred twenty".
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