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78503980123 = 263645146271
BaseRepresentation
bin100100100011100110…
…0111010110001011011
321111122002002101112101
41021013030322301123
52241234004330443
6100021512424231
75446254551422
oct1110714726133
9244562071471
1078503980123
11303254a5218
121326a9a8077
13753120735a
143b2a1d02b9
152096ead84d
hex124733ac5b

78503980123 has 8 divisors (see below), whose sum is σ = 78816393216. Its totient is φ = 78191673000.

The previous prime is 78503980091. The next prime is 78503980133. The reversal of 78503980123 is 32108930587.

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

It is a cyclic number.

It is not a de Polignac number, because 78503980123 - 25 = 78503980091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78503980133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673478 + ... + 1719748.

It is an arithmetic number, because the mean of its divisors is an integer number (9852049152).

Almost surely, 278503980123 is an apocalyptic number.

78503980123 is a deficient number, since it is larger than the sum of its proper divisors (312413093).

78503980123 is a wasteful number, since it uses less digits than its factorization.

78503980123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52985.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 78503980123 in words is "seventy-eight billion, five hundred three million, nine hundred eighty thousand, one hundred twenty-three".

Divisors: 1 263 6451 46271 1696613 12169273 298494221 78503980123