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3103031111120 = 245197429745821
BaseRepresentation
bin101101001001111011000…
…100010010110111010000
3101222122110120111000110122
4231021323010102313100
5401320001431023440
610333302433445412
7440121001152203
oct55117304226720
911878416430418
103103031111120
11a96a96191496
1242147aa10868
131967cb2c7805
14aa28a73b93a
1555ab4b1a7b5
hex2d27b112dd0

3103031111120 has 80 divisors (see below), whose sum is σ = 7253015183568. Its totient is φ = 1234597539840.

The previous prime is 3103031111101. The next prime is 3103031111123. The reversal of 3103031111120 is 211111303013.

It can be written as a sum of positive squares in 8 ways, for example, as 1099662627904 + 2003368483216 = 1048648^2 + 1415404^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103031111123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67697810 + ... + 67743630.

Almost surely, 23103031111120 is an apocalyptic number.

It is an amenable number.

3103031111120 is an abundant number, since it is smaller than the sum of its proper divisors (4149984072448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3103031111120 is a wasteful number, since it uses less digits than its factorization.

3103031111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50328 (or 50322 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 3103031111120 its reverse (211111303013), we get a palindrome (3314142414133).

The spelling of 3103031111120 in words is "three trillion, one hundred three billion, thirty-one million, one hundred eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 197 394 788 985 1576 1970 3152 3940 4297 7880 8594 15760 17188 21485 34376 42970 45821 68752 85940 91642 171880 183284 229105 343760 366568 458210 733136 846509 916420 1693018 1832840 3386036 3665680 4232545 6772072 8465090 9026737 13544144 16930180 18053474 33860360 36106948 45133685 67720720 72213896 90267370 144427792 180534740 196892837 361069480 393785674 722138960 787571348 984464185 1575142696 1968928370 3150285392 3937856740 7875713480 15751426960 38787888889 77575777778 155151555556 193939444445 310303111112 387878888890 620606222224 775757777780 1551515555560 3103031111120