Base | Representation |
---|---|
bin | 101001111000000… |
… | …1100001111111010 |
3 | 10121221000121110200 |
4 | 1103300030033322 |
5 | 10334204021020 |
6 | 351233023030 |
7 | 46551336636 |
oct | 12360141772 |
9 | 3557017420 |
10 | 1405142010 |
11 | 661190a98 |
12 | 3326b4a76 |
13 | 19515c09c |
14 | d488ddc6 |
15 | 8355d590 |
hex | 53c0c3fa |
1405142010 has 24 divisors (see below), whose sum is σ = 3653369460. Its totient is φ = 374704512.
The previous prime is 1405142009. The next prime is 1405142027. The reversal of 1405142010 is 102415041.
1405142010 is a `hidden beast` number, since 140 + 514 + 2 + 0 + 10 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 1258901361 + 146240649 = 35481^2 + 12093^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7806255 + ... + 7806434.
Almost surely, 21405142010 is an apocalyptic number.
1405142010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1405142010 is an abundant number, since it is smaller than the sum of its proper divisors (2248227450).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1405142010 is a wasteful number, since it uses less digits than its factorization.
1405142010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15612702 (or 15612699 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 1405142010 is about 37485.2238888872. The cubic root of 1405142010 is about 1120.0568662666.
Adding to 1405142010 its reverse (102415041), we get a palindrome (1507557051).
The spelling of 1405142010 in words is "one billion, four hundred five million, one hundred forty-two thousand, ten".
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