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50143202320 = 2457911177103
BaseRepresentation
bin101110101100110001…
…001000110000010000
311210102120021121021111
4232230301020300100
51310143124433240
635011354503104
73423411121141
oct565461106020
9153376247244
1050143202320
111a2a1592082
129874a34a94
13496162b823
1425d9769ac8
1514872301ea
hexbacc48c10

50143202320 has 80 divisors (see below), whose sum is σ = 118181007360. Its totient is φ = 19782876672.

The previous prime is 50143202299. The next prime is 50143202323. The reversal of 50143202320 is 2320234105.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 50143202291 and 50143202300.

It is not an unprimeable number, because it can be changed into a prime (50143202323) 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, 7055889 + ... + 7062991.

It is an arithmetic number, because the mean of its divisors is an integer number (1477262592).

Almost surely, 250143202320 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 50143202320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59090503680).

50143202320 is an abundant number, since it is smaller than the sum of its proper divisors (68037805040).

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

50143202320 is a wasteful number, since it uses less digits than its factorization.

50143202320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 50143202320 its reverse (2320234105), we get a palindrome (52463436425).

The spelling of 50143202320 in words is "fifty billion, one hundred forty-three million, two hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 79 80 158 316 395 632 790 1117 1264 1580 2234 3160 4468 5585 6320 7103 8936 11170 14206 17872 22340 28412 35515 44680 56824 71030 88243 89360 113648 142060 176486 284120 352972 441215 561137 568240 705944 882430 1122274 1411888 1764860 2244548 2805685 3529720 4489096 5611370 7059440 7934051 8978192 11222740 15868102 22445480 31736204 39670255 44890960 63472408 79340510 126944816 158681020 317362040 626790029 634724080 1253580058 2507160116 3133950145 5014320232 6267900290 10028640464 12535800580 25071601160 50143202320