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1023144145 = 51931060253
BaseRepresentation
bin111100111110111…
…111000011010001
32122022020002220121
4330332333003101
54043411103040
6245305310241
734232403352
oct7476770321
92568202817
101023144145
114855a1381
12246795381
13133c8174a
1499c53d29
155ec53c4a
hex3cfbf0d1

1023144145 has 8 divisors (see below), whose sum is σ = 1234135656. Its totient is φ = 814273536.

The previous prime is 1023144127. The next prime is 1023144163. The reversal of 1023144145 is 5414413201.

1023144145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1023144127) and next prime (1023144163).

It can be written as a sum of positive squares in 4 ways, for example, as 27867841 + 995276304 = 5279^2 + 31548^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023144145 - 29 = 1023143633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 529162 + ... + 531091.

It is an arithmetic number, because the mean of its divisors is an integer number (154266957).

Almost surely, 21023144145 is an apocalyptic number.

It is an amenable number.

1023144145 is a deficient number, since it is larger than the sum of its proper divisors (210991511).

1023144145 is a wasteful number, since it uses less digits than its factorization.

1023144145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060451.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1023144145 is about 31986.6244702376. The cubic root of 1023144145 is about 1007.6559518208.

Adding to 1023144145 its reverse (5414413201), we get a palindrome (6437557346).

The spelling of 1023144145 in words is "one billion, twenty-three million, one hundred forty-four thousand, one hundred forty-five".

Divisors: 1 5 193 965 1060253 5301265 204628829 1023144145