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79520231430341 = 13217197918440017
BaseRepresentation
bin10010000101001010111111…
…001001011001100011000101
3101102120001121122122110101022
4102011022333021121203011
540410324413221232331
6441043031235040525
722515101315425622
oct2205127711314305
9342501548573338
1079520231430341
1123379382610809
128b03678740145
13354a95832c400
14158cb2a69b349
1592d78503867b
hex4852bf2598c5

79520231430341 has 48 divisors (see below), whose sum is σ = 97186270867200. Its totient is φ = 64620897030144.

The previous prime is 79520231430293. The next prime is 79520231430371. The reversal of 79520231430341 is 14303413202597.

It is a de Polignac number, because none of the positive numbers 2k-79520231430341 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 = 79520231430292 and 79520231430301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79520231430371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4907636 + ... + 13532381.

It is an arithmetic number, because the mean of its divisors is an integer number (2024713976400).

Almost surely, 279520231430341 is an apocalyptic number.

It is an amenable number.

79520231430341 is a deficient number, since it is larger than the sum of its proper divisors (17666039436859).

79520231430341 is a wasteful number, since it uses less digits than its factorization.

79520231430341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18440158 (or 18440145 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 79520231430341 in words is "seventy-nine trillion, five hundred twenty billion, two hundred thirty-one million, four hundred thirty thousand, three hundred forty-one".

Divisors: 1 13 17 19 79 169 221 247 323 1027 1343 1501 2873 3211 4199 13351 17459 19513 25517 54587 226967 253669 331721 4312373 18440017 239720221 313480289 350360323 1456761343 3116362873 4075243757 4554684199 5956125491 18937897459 24764942831 27678465517 52978168841 59210894587 77429631383 246192666967 321944256803 359820051721 470533913789 1006585207979 4185275338439 4677660672373 6116940879257 79520231430341