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78441014487 = 3112757285457
BaseRepresentation
bin100100100001101110…
…0101110010011010111
321111110200121101220210
41021003130232103113
52241121344430422
6100011343100503
75444561423223
oct1110334562327
9244420541823
1078441014487
11302a29a9200
12132518a1733
13752115c594
143b21abd783
1520916c210c
hex124372e4d7

78441014487 has 24 divisors (see below), whose sum is σ = 115112651248. Its totient is φ = 47477041920.

The previous prime is 78441014383. The next prime is 78441014507.

78441014487 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78441014487 - 28 = 78441014231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78441013487) 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 23 ways as a sum of consecutive naturals, for example, 132063 + ... + 417519.

Almost surely, 278441014487 is an apocalyptic number.

78441014487 is a deficient number, since it is larger than the sum of its proper divisors (36671636761).

78441014487 is a wasteful number, since it uses less digits than its factorization.

78441014487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286239 (or 286228 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 48.

It can be divided in two parts, 784410 and 14487, that added together give a palindrome (798897).

The spelling of 78441014487 in words is "seventy-eight billion, four hundred forty-one million, fourteen thousand, four hundred eighty-seven".

Divisors: 1 3 11 33 121 363 757 2271 8327 24981 91597 274791 285457 856371 3140027 9420081 34540297 103620891 216090949 648272847 2377000439 7131001317 26147004829 78441014487