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57001106500 = 22531347186583
BaseRepresentation
bin110101000101100001…
…111101110001000100
312110010111122020020121
4311011201331301010
51413214240402000
642104055311324
74055353260652
oct650541756104
9173114566217
1057001106500
11221a0702a88
12b06967b544
1354b53724b0
142a8a497dd2
15173932bb1a
hexd4587dc44

57001106500 has 96 divisors (see below), whose sum is σ = 136919817216. Its totient is φ = 20598652800.

The previous prime is 57001106443. The next prime is 57001106543. The reversal of 57001106500 is 560110075.

It is a super-2 number, since 2×570011065002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212209 + ... + 398791.

It is an arithmetic number, because the mean of its divisors is an integer number (1426248096).

Almost surely, 257001106500 is an apocalyptic number.

57001106500 is a gapful number since it is divisible by the number (50) 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 57001106500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68459908608).

57001106500 is an abundant number, since it is smaller than the sum of its proper divisors (79918710716).

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

57001106500 is a wasteful number, since it uses less digits than its factorization.

57001106500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186662 (or 186650 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

Adding to 57001106500 its reverse (560110075), we get a palindrome (57561216575).

The spelling of 57001106500 in words is "fifty-seven billion, one million, one hundred six thousand, five hundred".

Divisors: 1 2 4 5 10 13 20 25 26 47 50 52 65 94 100 125 130 188 235 250 260 325 470 500 611 650 940 1175 1222 1300 1625 2350 2444 3055 3250 4700 5875 6110 6500 11750 12220 15275 23500 30550 61100 76375 152750 186583 305500 373166 746332 932915 1865830 2425579 3731660 4664575 4851158 8769401 9329150 9702316 12127895 17538802 18658300 23322875 24255790 35077604 43847005 46645750 48511580 60639475 87694010 93291500 114002213 121278950 175388020 219235025 228004426 242557900 303197375 438470050 456008852 570011065 606394750 876940100 1096175125 1140022130 1212789500 2192350250 2280044260 2850055325 4384700500 5700110650 11400221300 14250276625 28500553250 57001106500