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79245056153 = 557314219461
BaseRepresentation
bin100100111001101011…
…1111001100010011001
321120112201112221201202
41021303113321202121
52244243213244103
6100223224323545
75503523602064
oct1116327714231
9246481487652
1079245056153
113067584a64a
12134370135b5
13761b8c8c93
143b9a7bb8db
1520dc096988
hex12735f9899

79245056153 has 4 divisors (see below), whose sum is σ = 79259281188. Its totient is φ = 79230831120.

The previous prime is 79245056119. The next prime is 79245056161. The reversal of 79245056153 is 35165054297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46161811609 + 33083244544 = 214853^2 + 181888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-79245056153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79245056098 and 79245056107.

It is not an unprimeable number, because it can be changed into a prime (79245056173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7104158 + ... + 7115303.

It is an arithmetic number, because the mean of its divisors is an integer number (19814820297).

Almost surely, 279245056153 is an apocalyptic number.

It is an amenable number.

79245056153 is a deficient number, since it is larger than the sum of its proper divisors (14225035).

79245056153 is a wasteful number, since it uses less digits than its factorization.

79245056153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225034.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 79245056153 in words is "seventy-nine billion, two hundred forty-five million, fifty-six thousand, one hundred fifty-three".

Divisors: 1 5573 14219461 79245056153