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78090793485 = 355206052899
BaseRepresentation
bin100100010111010010…
…0101111001000001101
321110120021121100000120
41020232210233020031
52234412220342420
655512512415153
75433106535565
oct1105644571015
9243507540016
1078090793485
1130133242a61
12131745474b9
137496729913
143acb395da5
152070a92d40
hex122e92f20d

78090793485 has 8 divisors (see below), whose sum is σ = 124945269600. Its totient is φ = 41648423184.

The previous prime is 78090793463. The next prime is 78090793511. The reversal of 78090793485 is 58439709087.

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

It is not a de Polignac number, because 78090793485 - 25 = 78090793453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603026435 + ... + 2603026464.

It is an arithmetic number, because the mean of its divisors is an integer number (15618158700).

Almost surely, 278090793485 is an apocalyptic number.

It is an amenable number.

78090793485 is a deficient number, since it is larger than the sum of its proper divisors (46854476115).

78090793485 is a wasteful number, since it uses less digits than its factorization.

78090793485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206052907.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 78090793485 in words is "seventy-eight billion, ninety million, seven hundred ninety-three thousand, four hundred eighty-five".

Divisors: 1 3 5 15 5206052899 15618158697 26030264495 78090793485