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389514156892 = 227279227110819
BaseRepresentation
bin1011010101100001101…
…10100101101101011100
31101020101220121100102021
411222300312211231130
522340211111010032
6454535040105524
740066344463600
oct5526066455534
91336356540367
10389514156892
11140212650263
12635a76052a4
132a9670b4753
1414bd16d1500
15a1eb06c097
hex5ab0da5b5c

389514156892 has 72 divisors (see below), whose sum is σ = 806521363200. Its totient is φ = 164093975136.

The previous prime is 389514156883. The next prime is 389514156949. The reversal of 389514156892 is 298651415983.

It is a self number, because there is not a number n which added to its sum of digits gives 389514156892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3459459 + ... + 3570277.

It is an arithmetic number, because the mean of its divisors is an integer number (11201685600).

Almost surely, 2389514156892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389514156892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403260681600).

389514156892 is an abundant number, since it is smaller than the sum of its proper divisors (417007206308).

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

389514156892 is a wasteful number, since it uses less digits than its factorization.

389514156892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111143 (or 111134 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The spelling of 389514156892 in words is "three hundred eighty-nine billion, five hundred fourteen million, one hundred fifty-six thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 227 316 454 553 908 1106 1589 2212 3178 3871 6356 7742 11123 15484 17933 22246 35866 44492 71732 110819 125531 221638 251062 443276 502124 775733 878717 1551466 1757434 3102932 3514868 5430131 8754701 10860262 17509402 21720524 25155913 35018804 50311826 61282907 100623652 122565814 176091391 245131628 352182782 428980349 704365564 857960698 1232639737 1715921396 1987317127 2465279474 3974634254 4930558948 7949268508 13911219889 27822439778 55644879556 97378539223 194757078446 389514156892