Base | Representation |
---|---|
bin | 101010111110101… |
… | …1100110111010010 |
3 | 10201111200221120111 |
4 | 1111331130313102 |
5 | 10423144003440 |
6 | 355034431534 |
7 | 50511156112 |
oct | 12575346722 |
9 | 3644627514 |
10 | 1442172370 |
11 | 6800834a1 |
12 | 342b925aa |
13 | 19ca26042 |
14 | d976d042 |
15 | 869254ea |
hex | 55f5cdd2 |
1442172370 has 32 divisors (see below), whose sum is σ = 2647799280. Its totient is φ = 565405440.
The previous prime is 1442172367. The next prime is 1442172379. The reversal of 1442172370 is 732712441.
It can be written as a sum of positive squares in 8 ways, for example, as 141776649 + 1300395721 = 11907^2 + 36061^2 .
It is a super-2 number, since 2×14421723702 = 4159722289582833800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1442172379) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174696 + ... + 182764.
Almost surely, 21442172370 is an apocalyptic number.
1442172370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1442172370 is a deficient number, since it is larger than the sum of its proper divisors (1205626910).
1442172370 is a wasteful number, since it uses less digits than its factorization.
1442172370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8430.
The product of its (nonzero) digits is 9408, while the sum is 31.
The square root of 1442172370 is about 37975.9446228794. The cubic root of 1442172370 is about 1129.8108044644.
The spelling of 1442172370 in words is "one billion, four hundred forty-two million, one hundred seventy-two thousand, three hundred seventy".
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