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853750119990 = 235294753393947
BaseRepresentation
bin11000110110001110111…
…10001111111000110110
310000121200022110202010110
430123013132033320312
5102441440012314430
61452112444003450
7115452503166135
oct14330736177066
93017608422113
10853750119990
112aa08975a469
12119567230586
136267b93abc1
142d470b6191c
151731beed7b0
hexc6c778fe36

853750119990 has 128 divisors (see below), whose sum is σ = 2205604546560. Its totient is φ = 211079418368.

The previous prime is 853750119977. The next prime is 853750119991. The reversal of 853750119990 is 99911057358.

It is a self number, because there is not a number n which added to its sum of digits gives 853750119990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853750119991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1970197 + ... + 2364143.

It is an arithmetic number, because the mean of its divisors is an integer number (17231285520).

Almost surely, 2853750119990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853750119990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102802273280).

853750119990 is an abundant number, since it is smaller than the sum of its proper divisors (1351854426570).

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

853750119990 is a wasteful number, since it uses less digits than its factorization.

853750119990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394086.

The product of its (nonzero) digits is 3061800, while the sum is 57.

The spelling of 853750119990 in words is "eight hundred fifty-three billion, seven hundred fifty million, one hundred nineteen thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 29 30 47 53 58 87 94 106 141 145 159 174 235 265 282 290 318 435 470 530 705 795 870 1363 1410 1537 1590 2491 2726 3074 4089 4611 4982 6815 7473 7685 8178 9222 12455 13630 14946 15370 20445 23055 24910 37365 40890 46110 72239 74730 144478 216717 361195 393947 433434 722390 787894 1083585 1181841 1969735 2167170 2363682 3939470 5909205 11424463 11818410 18515509 20879191 22848926 34273389 37031018 41758382 55546527 57122315 62637573 68546778 92577545 104395955 111093054 114244630 125275146 171366945 185155090 208791910 277732635 313187865 342733890 536949761 555465270 605496539 626375730 981321977 1073899522 1210993078 1610849283 1816489617 1962643954 2684748805 2943965931 3027482695 3221698566 3632979234 4906609885 5369497610 5887931862 6054965390 8054246415 9082448085 9813219770 14719829655 16108492830 18164896170 28458337333 29439659310 56916674666 85375011999 142291686665 170750023998 284583373330 426875059995 853750119990