Search a number
-
+
85280124400 = 24521911221069
BaseRepresentation
bin100111101101100010…
…1110110110111110000
322011010022121011222221
41033123011312313300
52344123202440100
6103102133010424
76106215045202
oct1173305666760
9264108534887
1085280124400
1133192452759
1214640183a14
138071022893
1441b0118772
152341d0a01a
hex13db176df0

85280124400 has 60 divisors (see below), whose sum is σ = 215668965400. Its totient is φ = 32316675840.

The previous prime is 85280124389. The next prime is 85280124427. The reversal of 85280124400 is 442108258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5602935 + ... + 5618134.

Almost surely, 285280124400 is an apocalyptic number.

85280124400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85280124400 is an abundant number, since it is smaller than the sum of its proper divisors (130388841000).

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

85280124400 is a wasteful number, since it uses less digits than its factorization.

85280124400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221106 (or 11221095 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 85280124400 in words is "eighty-five billion, two hundred eighty million, one hundred twenty-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 7600 11221069 22442138 44884276 56105345 89768552 112210690 179537104 213200311 224421380 280526725 426400622 448842760 561053450 852801244 897685520 1066001555 1122106900 1705602488 2132003110 2244213800 3411204976 4264006220 4488427600 5330007775 8528012440 10660015550 17056024880 21320031100 42640062200 85280124400