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97142505759 = 321319163268091
BaseRepresentation
bin101101001111000100…
…1010000000100011111
3100021202000202121001200
41122132021100010133
53042421440141014
6112343205010543
710006165450335
oct1323611200437
9307660677050
1097142505759
113821a459412
12169b09b3a53
139211801c50
1449b7751b55
1527d8444a09
hex169e25011f

97142505759 has 48 divisors (see below), whose sum is σ = 160040200320. Its totient is φ = 56286031680.

The previous prime is 97142505749. The next prime is 97142505793. The reversal of 97142505759 is 95750524179.

It is a happy number.

97142505759 is a `hidden beast` number, since 9 + 7 + 14 + 2 + 50 + 575 + 9 = 666.

It is not a de Polignac number, because 97142505759 - 24 = 97142505743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97142505749) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 228304 + ... + 496394.

It is an arithmetic number, because the mean of its divisors is an integer number (3334170840).

Almost surely, 297142505759 is an apocalyptic number.

97142505759 is a deficient number, since it is larger than the sum of its proper divisors (62897694561).

97142505759 is a wasteful number, since it uses less digits than its factorization.

97142505759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268292 (or 268289 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 54.

The spelling of 97142505759 in words is "ninety-seven billion, one hundred forty-two million, five hundred five thousand, seven hundred fifty-nine".

Divisors: 1 3 9 13 19 39 57 117 163 171 247 489 741 1467 2119 2223 3097 6357 9291 19071 27873 40261 120783 268091 362349 804273 2412819 3485183 5093729 10455549 15281187 31366647 43698833 45843561 66218477 131096499 198655431 393289497 568084829 595966293 830277827 1704254487 2490833481 5112763461 7472500443 10793611751 32380835253 97142505759