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2006552500 = 225417311523
BaseRepresentation
bin111011110011001…
…1000111110110100
312011211200102120021
41313212120332310
513102134140000
6531035214524
7100503262201
oct16746307664
95154612507
102006552500
1193a712657
1247bba7444
1325c92c994
141506c2ca8
15bb25911a
hex77998fb4

2006552500 has 120 divisors (see below), whose sum is σ = 4799063808. Its totient is φ = 730560000.

The previous prime is 2006552491. The next prime is 2006552501. The reversal of 2006552500 is 52556002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006552501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1316739 + ... + 1318261.

Almost surely, 22006552500 is an apocalyptic number.

2006552500 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 2006552500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2399531904).

2006552500 is an abundant number, since it is smaller than the sum of its proper divisors (2792511308).

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

2006552500 is a wasteful number, since it uses less digits than its factorization.

2006552500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2006552500 is about 44794.5588213569. The cubic root of 2006552500 is about 1261.2954887640.

The spelling of 2006552500 in words is "two billion, six million, five hundred fifty-two thousand, five hundred".

Divisors: 1 2 4 5 10 17 20 25 31 34 50 62 68 85 100 124 125 155 170 250 310 340 425 500 527 620 625 775 850 1054 1250 1523 1550 1700 2108 2125 2500 2635 3046 3100 3875 4250 5270 6092 7615 7750 8500 10540 10625 13175 15230 15500 19375 21250 25891 26350 30460 38075 38750 42500 47213 51782 52700 65875 76150 77500 94426 103564 129455 131750 152300 188852 190375 236065 258910 263500 329375 380750 472130 517820 647275 658750 761500 802621 944260 951875 1180325 1294550 1317500 1605242 1903750 2360650 2589100 3210484 3236375 3807500 4013105 4721300 5901625 6472750 8026210 11803250 12945500 16052420 16181875 20065525 23606500 29508125 32363750 40131050 59016250 64727500 80262100 100327625 118032500 200655250 401310500 501638125 1003276250 2006552500