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2152015125 = 3531317231129
BaseRepresentation
bin1000000001000101…
…0010010100010101
312112222101200202220
42000101102110111
513401403441000
6553313052553
7104220553401
oct20021222425
95488350686
102152015125
11a048358a7
12500857159
13283b00540
14165b4a101
15c8dde1a0
hex80452515

2152015125 has 128 divisors (see below), whose sum is σ = 4264565760. Its totient is φ = 952934400.

The previous prime is 2152015111. The next prime is 2152015169. The reversal of 2152015125 is 5215102512.

It is not a de Polignac number, because 2152015125 - 211 = 2152013077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2152015095 and 2152015104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1905561 + ... + 1906689.

It is an arithmetic number, because the mean of its divisors is an integer number (33316920).

Almost surely, 22152015125 is an apocalyptic number.

2152015125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2152015125 is a deficient number, since it is larger than the sum of its proper divisors (2112550635).

2152015125 is a wasteful number, since it uses less digits than its factorization.

2152015125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 2152015125 is about 46389.8170399496. The cubic root of 2152015125 is about 1291.0659868596.

Adding to 2152015125 its reverse (5215102512), we get a palindrome (7367117637).

The spelling of 2152015125 in words is "two billion, one hundred fifty-two million, fifteen thousand, one hundred twenty-five".

Divisors: 1 3 5 13 15 17 23 25 39 51 65 69 75 85 115 125 195 221 255 299 325 345 375 391 425 575 663 897 975 1105 1129 1173 1275 1495 1625 1725 1955 2125 2875 3315 3387 4485 4875 5083 5525 5645 5865 6375 7475 8625 9775 14677 15249 16575 16935 19193 22425 25415 25967 27625 28225 29325 37375 44031 48875 57579 73385 76245 77901 82875 84675 95965 112125 127075 129835 141125 146625 220155 249509 287895 337571 366925 381225 389505 423375 441439 479825 635375 649175 748527 1012713 1100775 1247545 1324317 1439475 1687855 1834625 1906125 1947525 2207195 2399125 3245875 3742635 5063565 5503875 5738707 6237725 6621585 7197375 8439275 9737625 11035975 17216121 18713175 25317825 28693535 31188625 33107925 42196375 55179875 86080605 93565875 126589125 143467675 165539625 430403025 717338375 2152015125