Base | Representation |
---|---|
bin | 10001010010100… |
… | …00000011010011 |
3 | 101002220100122120 |
4 | 20221100003103 |
5 | 244112001004 |
6 | 22220305323 |
7 | 3410514003 |
oct | 1051200323 |
9 | 332810576 |
10 | 145031379 |
11 | 74959249 |
12 | 406a2243 |
13 | 2407c4ac |
14 | 15394003 |
15 | caec3d9 |
hex | 8a500d3 |
145031379 has 8 divisors (see below), whose sum is σ = 198601680. Its totient is φ = 94074336.
The previous prime is 145031377. The next prime is 145031401. The reversal of 145031379 is 973130541.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 145031379 - 21 = 145031377 is a prime.
It is not an unprimeable number, because it can be changed into a prime (145031377) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653184 + ... + 653405.
It is an arithmetic number, because the mean of its divisors is an integer number (24825210).
Almost surely, 2145031379 is an apocalyptic number.
145031379 is a deficient number, since it is larger than the sum of its proper divisors (53570301).
145031379 is a wasteful number, since it uses less digits than its factorization.
145031379 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1306629.
The product of its (nonzero) digits is 11340, while the sum is 33.
The square root of 145031379 is about 12042.8974503647. The cubic root of 145031379 is about 525.3966816041.
The spelling of 145031379 in words is "one hundred forty-five million, thirty-one thousand, three hundred seventy-nine".
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