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61055056016013 = 320353999935407
BaseRepresentation
bin11011110000111011111001…
…11011001111001010001101
322000011210202211102100011110
431320131330323033022031
531000311223320003023
6333504145554242233
715601040130206613
oct1570357473171215
9260153684370143
1061055056016013
11184aa338467784
126a20a66886379
13280b60c2290a7
14111111ab936b3
1570d2ae9cca93
hex37877cecf28d

61055056016013 has 8 divisors (see below), whose sum is σ = 81410741177728. Its totient is φ = 40701370765824.

The previous prime is 61055056016011. The next prime is 61055056016051. The reversal of 61055056016013 is 31061065055016.

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

It is not a de Polignac number, because 61055056016013 - 21 = 61055056016011 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 (61055056016011) 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, 499906645 + ... + 500028762.

It is an arithmetic number, because the mean of its divisors is an integer number (10176342647216).

Almost surely, 261055056016013 is an apocalyptic number.

It is an amenable number.

61055056016013 is a deficient number, since it is larger than the sum of its proper divisors (20355685161715).

61055056016013 is a wasteful number, since it uses less digits than its factorization.

61055056016013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999955763.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 61055056016013 in words is "sixty-one trillion, fifty-five billion, fifty-six million, sixteen thousand, thirteen".

Divisors: 1 3 20353 61059 999935407 2999806221 20351685338671 61055056016013