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1143231442 = 21077736911
BaseRepresentation
bin100010000100100…
…0101001111010010
32221200012011201021
41010021011033102
54320131401232
6305235230054
740221210163
oct10411051722
92850164637
101143231442
11537362781
1227aa4832a
13152b09312
14abb9376a
156a575397
hex442453d2

1143231442 has 16 divisors (see below), whose sum is σ = 1733363712. Its totient is φ = 565459120.

The previous prime is 1143231409. The next prime is 1143231451. The reversal of 1143231442 is 2441323411.

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, 161967 + ... + 168877.

It is an arithmetic number, because the mean of its divisors is an integer number (108335232).

Almost surely, 21143231442 is an apocalyptic number.

1143231442 is a deficient number, since it is larger than the sum of its proper divisors (590132270).

1143231442 is a wasteful number, since it uses less digits than its factorization.

1143231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7793.

The product of its digits is 2304, while the sum is 25.

The square root of 1143231442 is about 33811.7056949217. The cubic root of 1143231442 is about 1045.6300442736.

Adding to 1143231442 its reverse (2441323411), we get a palindrome (3584554853).

The spelling of 1143231442 in words is "one billion, one hundred forty-three million, two hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 107 214 773 1546 6911 13822 82711 165422 739477 1478954 5342203 10684406 571615721 1143231442