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1110312021 = 372133741383
BaseRepresentation
bin100001000101110…
…0000010001010101
32212101020200202110
41002023200101111
54233214441041
6302101501233
736341332200
oct10213402125
92771220673
101110312021
1151a818945
1226ba11819
13149051580
14a7664937
1567721516
hex422e0455

1110312021 has 96 divisors (see below), whose sum is σ = 1956261888. Its totient is φ = 554480640.

The previous prime is 1110312011. The next prime is 1110312037. The reversal of 1110312021 is 1202130111.

It is not a de Polignac number, because 1110312021 - 25 = 1110311989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1110311988 and 1110312006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110312011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2898796 + ... + 2899178.

It is an arithmetic number, because the mean of its divisors is an integer number (20377728).

Almost surely, 21110312021 is an apocalyptic number.

It is an amenable number.

1110312021 is a deficient number, since it is larger than the sum of its proper divisors (845949867).

1110312021 is a wasteful number, since it uses less digits than its factorization.

1110312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1110312021 is about 33321.3448258020. The cubic root of 1110312021 is about 1035.4958132274.

Adding to 1110312021 its reverse (1202130111), we get a palindrome (2312442132).

The spelling of 1110312021 in words is "one billion, one hundred ten million, three hundred twelve thousand, twenty-one".

Divisors: 1 3 7 13 21 37 39 41 49 91 111 123 147 259 273 287 383 481 533 637 777 861 1149 1443 1517 1599 1813 1911 2009 2681 3367 3731 4551 4979 5439 6027 8043 10101 10619 11193 14171 14937 15703 18767 19721 23569 26117 31857 34853 42513 47109 56301 59163 70707 74333 78351 99197 104559 109921 138047 184223 204139 222999 243971 297591 329763 414141 552669 581011 612417 694379 731913 769447 966329 1289561 1428973 1743033 2083137 2308341 2898987 3868683 4067077 4286919 7553143 9026927 10002811 12201231 22659429 27080781 28469539 30008433 52872001 85408617 158616003 370104007 1110312021