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1030223144 = 23296172797
BaseRepresentation
bin111101011001111…
…111010100101000
32122210112202110202
4331121333110220
54102214120034
6250121131332
734346516006
oct7531772450
92583482422
101030223144
11489596995
12249029b48
1313558c8c2
149ab77a76
15606a147e
hex3d67f528

1030223144 has 32 divisors (see below), whose sum is σ = 2031064200. Its totient is φ = 489189120.

The previous prime is 1030223119. The next prime is 1030223189. The reversal of 1030223144 is 4413220301.

It can be written as a sum of positive squares in 4 ways, for example, as 668843044 + 361380100 = 25862^2 + 19010^2 .

It is a super-2 number, since 2×10302231442 = 2122719452866489472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22247 + ... + 50550.

Almost surely, 21030223144 is an apocalyptic number.

It is an amenable number.

1030223144 is a deficient number, since it is larger than the sum of its proper divisors (1000841056).

1030223144 is a wasteful number, since it uses less digits than its factorization.

1030223144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72893 (or 72889 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1030223144 is about 32097.0893384431. The cubic root of 1030223144 is about 1009.9745587161.

Adding to 1030223144 its reverse (4413220301), we get a palindrome (5443443445).

The spelling of 1030223144 in words is "one billion, thirty million, two hundred twenty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 29 58 61 116 122 232 244 488 1769 3538 7076 14152 72797 145594 291188 582376 2111113 4222226 4440617 8444452 8881234 16888904 17762468 35524936 128777893 257555786 515111572 1030223144