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2125104550 = 2521723711531
BaseRepresentation
bin111111010101010…
…1000010110100110
312111002202111101221
41332222220112212
513323011321200
6550512210554
7103443043042
oct17652502646
95432674357
102125104550
119a0625558
124b3839a5a
1327b36a81a
14162343022
15c687591a
hex7eaa85a6

2125104550 has 96 divisors (see below), whose sum is σ = 4431573504. Its totient is φ = 753984000.

The previous prime is 2125104521. The next prime is 2125104587. The reversal of 2125104550 is 554015212.

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

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1387285 + ... + 1388815.

It is an arithmetic number, because the mean of its divisors is an integer number (46162224).

Almost surely, 22125104550 is an apocalyptic number.

2125104550 is an abundant number, since it is smaller than the sum of its proper divisors (2306468954).

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

2125104550 is a wasteful number, since it uses less digits than its factorization.

2125104550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2125104550 is about 46098.8562764848. The cubic root of 2125104550 is about 1285.6618794924.

Adding to 2125104550 its reverse (554015212), we get a palindrome (2679119762).

The spelling of 2125104550 in words is "two billion, one hundred twenty-five million, one hundred four thousand, five hundred fifty".

Divisors: 1 2 5 10 17 23 25 34 46 50 71 85 115 142 170 230 355 391 425 575 710 782 850 1150 1207 1531 1633 1775 1955 2414 3062 3266 3550 3910 6035 7655 8165 9775 12070 15310 16330 19550 26027 27761 30175 35213 38275 40825 52054 55522 60350 70426 76550 81650 108701 130135 138805 176065 217402 260270 277610 352130 543505 598621 650675 694025 880325 1087010 1197242 1301350 1388050 1760650 1847917 2500123 2717525 2993105 3695834 5000246 5435050 5986210 9239585 12500615 14965525 18479170 25001230 29931050 42502091 46197925 62503075 85004182 92395850 125006150 212510455 425020910 1062552275 2125104550