Search a number
-
+
1029741745 = 5205948349
BaseRepresentation
bin111101011000001…
…001110010110001
32122202122022010011
4331120021302301
54102103213440
6250102534521
734342442344
oct7530116261
92582568104
101029741745
1148929823a
12248a37441
13135451756
149aa9045b
15606089ea
hex3d609cb1

1029741745 has 4 divisors (see below), whose sum is σ = 1235690100. Its totient is φ = 823793392.

The previous prime is 1029741743. The next prime is 1029741749. The reversal of 1029741745 is 5471479201.

1029741745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478384384 + 551357361 = 21872^2 + 23481^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029741745 - 21 = 1029741743 is a prime.

It is a super-2 number, since 2×10297417452 = 2120736122791290050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1029741698 and 1029741707.

It is not an unprimeable number, because it can be changed into a prime (1029741743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102974170 + ... + 102974179.

It is an arithmetic number, because the mean of its divisors is an integer number (308922525).

Almost surely, 21029741745 is an apocalyptic number.

It is an amenable number.

1029741745 is a deficient number, since it is larger than the sum of its proper divisors (205948355).

1029741745 is an equidigital number, since it uses as much as digits as its factorization.

1029741745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205948354.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 1029741745 is about 32089.5893554280. The cubic root of 1029741745 is about 1009.8172217692.

The spelling of 1029741745 in words is "one billion, twenty-nine million, seven hundred forty-one thousand, seven hundred forty-five".

Divisors: 1 5 205948349 1029741745