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12020302025551 = 194492522955849
BaseRepresentation
bin1010111011101011000111…
…0101010001001101001111
31120120010111111220212012201
42232322301311101031033
53033420034304304201
641322014524542331
72350303201253251
oct256726165211517
946503444825181
1012020302025551
113914866141116
1214217469b19a7
13692681824261
142d7b00043cd1
1515ca2044a801
hexaeeb1d5134f

12020302025551 has 16 divisors (see below), whose sum is σ = 12681859500000. Its totient is φ = 11361638486016.

The previous prime is 12020302025549. The next prime is 12020302025581. The reversal of 12020302025551 is 15552020302021.

It is a cyclic number.

It is not a de Polignac number, because 12020302025551 - 21 = 12020302025549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020302025581) 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, 215200675 + ... + 215256523.

It is an arithmetic number, because the mean of its divisors is an integer number (792616218750).

Almost surely, 212020302025551 is an apocalyptic number.

12020302025551 is a deficient number, since it is larger than the sum of its proper divisors (661557474449).

12020302025551 is a wasteful number, since it uses less digits than its factorization.

12020302025551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81546.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 12020302025551 its reverse (15552020302021), we get a palindrome (27572322327572).

The spelling of 12020302025551 in words is "twelve trillion, twenty billion, three hundred two million, twenty-five thousand, five hundred fifty-one".

Divisors: 1 19 449 8531 25229 55849 479351 1061131 11327821 25076201 215228599 476447819 1409014421 26771273999 632647475029 12020302025551