Search a number
-
+
2144046429 = 3473781387
BaseRepresentation
bin111111111001011…
…1000110101011101
312112102101211210000
41333302320311131
513342333441204
6552430204513
7104063044140
oct17762706535
95472354700
102144046429
11a002928a8
124ba053739
13282270435
14164a74057
15c8368039
hex7fcb8d5d

2144046429 has 20 divisors (see below), whose sum is σ = 3660383584. Its totient is φ = 1225169064.

The previous prime is 2144046413. The next prime is 2144046461. The reversal of 2144046429 is 9246404412.

It is a happy number.

2144046429 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 0 + 4 + 642 + 9 = 666.

It is not a de Polignac number, because 2144046429 - 24 = 2144046413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144046393 and 2144046402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144046529) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1890127 + ... + 1891260.

Almost surely, 22144046429 is an apocalyptic number.

It is an amenable number.

2144046429 is a deficient number, since it is larger than the sum of its proper divisors (1516337155).

2144046429 is an equidigital number, since it uses as much as digits as its factorization.

2144046429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781406 (or 3781397 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 2144046429 is about 46303.8489652858. The cubic root of 2144046429 is about 1289.4704532829.

The spelling of 2144046429 in words is "two billion, one hundred forty-four million, forty-six thousand, four hundred twenty-nine".

Divisors: 1 3 7 9 21 27 63 81 189 567 3781387 11344161 26469709 34032483 79409127 102097449 238227381 306292347 714682143 2144046429