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1331113330 = 2561283431
BaseRepresentation
bin100111101010111…
…0010110101110010
310102202201120012201
41033111302311302
510211231111310
6340030213414
744662163611
oct11725626562
93382646181
101331113330
11623419168
1231195426a
13182a0c931
14c8add878
157bcd8e3a
hex4f572d72

1331113330 has 48 divisors (see below), whose sum is σ = 2470995072. Its totient is φ = 516206400.

The previous prime is 1331113283. The next prime is 1331113349. The reversal of 1331113330 is 333111331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1331113298 and 1331113307.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3088215 + ... + 3088645.

It is an arithmetic number, because the mean of its divisors is an integer number (51479064).

Almost surely, 21331113330 is an apocalyptic number.

1331113330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331113330 is a deficient number, since it is larger than the sum of its proper divisors (1139881742).

1331113330 is an equidigital number, since it uses as much as digits as its factorization.

1331113330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 19.

The square root of 1331113330 is about 36484.4258554249. The cubic root of 1331113330 is about 1100.0312194996.

Adding to 1331113330 its reverse (333111331), we get a palindrome (1664224661).

The spelling of 1331113330 in words is "one billion, three hundred thirty-one million, one hundred thirteen thousand, three hundred thirty".

Divisors: 1 2 5 10 61 83 122 166 305 415 431 610 830 862 2155 3721 4310 5063 7442 10126 18605 25315 26291 35773 37210 50630 52582 71546 131455 178865 262910 308843 357730 617686 1544215 1603751 2182153 3088430 3207502 4364306 8018755 10910765 16037510 21821530 133111333 266222666 665556665 1331113330