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252079189120 = 27511195118353
BaseRepresentation
bin1110101011000100010…
…1110010110010000000
3220002122211110121101201
43222301011302302000
513112224233022440
6311445323510544
724132520516423
oct3526105626200
9802584417351
10252079189120
11979a7148870
1240a30988454
131aa03a71505
14c2b4a019ba
15685562019a
hex3ab1172c80

252079189120 has 128 divisors (see below), whose sum is σ = 657783866880. Its totient is φ = 91613184000.

The previous prime is 252079189067. The next prime is 252079189129. The reversal of 252079189120 is 21981970252.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (252079189129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13725864 + ... + 13744216.

It is an arithmetic number, because the mean of its divisors is an integer number (5138936460).

Almost surely, 2252079189120 is an apocalyptic number.

252079189120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252079189120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328891933440).

252079189120 is an abundant number, since it is smaller than the sum of its proper divisors (405704677760).

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

252079189120 is a wasteful number, since it uses less digits than its factorization.

252079189120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334 (or 20322 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 252079189120 in words is "two hundred fifty-two billion, seventy-nine million, one hundred eighty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 1951 3520 3902 7040 7804 9755 15608 18353 19510 21461 31216 36706 39020 42922 62432 73412 78040 85844 91765 107305 124864 146824 156080 171688 183530 201883 214610 249728 293648 312160 343376 367060 403766 429220 587296 624320 686752 734120 807532 858440 1009415 1174592 1248640 1373504 1468240 1615064 1716880 2018830 2349184 2747008 2936480 3230128 3433760 4037660 5872960 6460256 6867520 8075320 11745920 12920512 13735040 16150640 25841024 32301280 35806703 64602560 71613406 129205120 143226812 179033515 286453624 358067030 393873733 572907248 716134060 787747466 1145814496 1432268120 1575494932 1969368665 2291628992 2864536240 3150989864 3938737330 4583257984 5729072480 6301979728 7877474660 11458144960 12603959456 15754949320 22916289920 25207918912 31509898640 50415837824 63019797280 126039594560 252079189120