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83117751342388 = 22723129064831277
BaseRepresentation
bin10010111001100001011100…
…000010110001010100110100
3101220021222110000001021020021
4102321201130002301110310
541343300123320424023
6452435433504014524
723336026235223640
oct2271413402612464
9356258400037207
1083117751342388
1124536049837214
1293a493a901444
13374bc7ca3c739
141674cc62cbc20
1599213ba0435d
hex4b985c0b1534

83117751342388 has 24 divisors (see below), whose sum is σ = 173463133237632. Its totient is φ = 34073115456864.

The previous prime is 83117751342371. The next prime is 83117751342419. The reversal of 83117751342388 is 88324315771138.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64532414995 + ... + 64532416282.

It is an arithmetic number, because the mean of its divisors is an integer number (7227630551568).

Almost surely, 283117751342388 is an apocalyptic number.

It is an amenable number.

83117751342388 is an abundant number, since it is smaller than the sum of its proper divisors (90345381895244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83117751342388 is a wasteful number, since it uses less digits than its factorization.

83117751342388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129064831311 (or 129064831309 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 83117751342388 in words is "eighty-three trillion, one hundred seventeen billion, seven hundred fifty-one million, three hundred forty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 129064831277 258129662554 516259325108 903453818939 1806907637878 2968491119371 3613815275756 5936982238742 11873964477484 20779437835597 41558875671194 83117751342388