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12020030023013 = 172924381399641
BaseRepresentation
bin1010111011101010000110…
…0111101010010101100101
31120120002210120002200212122
42232322201213222111211
53033414010141214023
641321531530555325
72350263356262035
oct256724147522545
946502716080778
1012020030023013
11391473664a631
12142168b898b45
1369263a379acc
142d7ab5c7b8c5
1515ca0661c2c8
hexaeea19ea565

12020030023013 has 8 divisors (see below), whose sum is σ = 13165955806680. Its totient is φ = 10922867038720.

The previous prime is 12020030023003. The next prime is 12020030023021. The reversal of 12020030023013 is 31032003002021.

It can be written as a sum of positive squares in 4 ways, for example, as 4237146415489 + 7782883607524 = 2058433^2 + 2789782^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020030023013 - 224 = 12020013245797 is a prime.

It is a super-2 number, since 2×120200300230132 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020030022982 and 12020030023000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020030023003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12190699328 + ... + 12190700313.

It is an arithmetic number, because the mean of its divisors is an integer number (1645744475835).

Almost surely, 212020030023013 is an apocalyptic number.

It is an amenable number.

12020030023013 is a deficient number, since it is larger than the sum of its proper divisors (1145925783667).

12020030023013 is a wasteful number, since it uses less digits than its factorization.

12020030023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24381399687.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12020030023013 its reverse (31032003002021), we get a palindrome (43052033025034).

The spelling of 12020030023013 in words is "twelve trillion, twenty billion, thirty million, twenty-three thousand, thirteen".

Divisors: 1 17 29 493 24381399641 414483793897 707060589589 12020030023013