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55842679191 = 3132087686087
BaseRepresentation
bin110100000000011110…
…111010100110010111
312100010202212000201110
4310000132322212113
51403331211213231
641353114230103
74014555640605
oct640036724627
9170122760643
1055842679191
1121756811442
12a9a5725333
13535c375650
1429ba6aa875
1516bc7a4046
hexd007ba997

55842679191 has 16 divisors (see below), whose sum is σ = 80222897664. Its totient is φ = 34348209504.

The previous prime is 55842679187. The next prime is 55842679213. The reversal of 55842679191 is 19197624855.

It is a happy number.

55842679191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55842679191 - 22 = 55842679187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55842679181) 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, 261651 + ... + 424436.

It is an arithmetic number, because the mean of its divisors is an integer number (5013931104).

Almost surely, 255842679191 is an apocalyptic number.

55842679191 is a deficient number, since it is larger than the sum of its proper divisors (24380218473).

55842679191 is a wasteful number, since it uses less digits than its factorization.

55842679191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688190.

The product of its digits is 5443200, while the sum is 57.

The spelling of 55842679191 in words is "fifty-five billion, eight hundred forty-two million, six hundred seventy-nine thousand, one hundred ninety-one".

Divisors: 1 3 13 39 2087 6261 27131 81393 686087 2058261 8919131 26757393 1431863569 4295590707 18614226397 55842679191