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79846869448 = 239980858681
BaseRepresentation
bin100101001011100111…
…1101000100111001000
321122002122222020101001
41022113033220213020
52302011244310243
6100403043304344
75524452122563
oct1122717504710
9248078866331
1079846869448
1130954526905
121358467b0b4
1376b64ab018
143c166b74da
152124d21a4d
hex12973e89c8

79846869448 has 8 divisors (see below), whose sum is σ = 149712880230. Its totient is φ = 39923434720.

The previous prime is 79846869383. The next prime is 79846869449. The reversal of 79846869448 is 84496864897.

It can be written as a sum of positive squares in only one way, i.e., 68926201444 + 10920668004 = 262538^2 + 104502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (79846869449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4990429333 + ... + 4990429348.

Almost surely, 279846869448 is an apocalyptic number.

It is an amenable number.

79846869448 is a deficient number, since it is larger than the sum of its proper divisors (69866010782).

79846869448 is a wasteful number, since it uses less digits than its factorization.

79846869448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9980858687 (or 9980858683 counting only the distinct ones).

The product of its digits is 668860416, while the sum is 73.

The spelling of 79846869448 in words is "seventy-nine billion, eight hundred forty-six million, eight hundred sixty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 9980858681 19961717362 39923434724 79846869448