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2130901290 = 233571127461
BaseRepresentation
bin111111100000010…
…1111100100101010
312111111200000001000
41333000233210222
513331002320130
6551240335430
7103543235130
oct17700574452
95444600030
102130901290
119a3924751
124b5774576
1327c61a14b
14163011750
15c711d260
hex7f02f92a

2130901290 has 64 divisors (see below), whose sum is σ = 6494181120. Its totient is φ = 487062720.

The previous prime is 2130901271. The next prime is 2130901291. The reversal of 2130901290 is 921090312.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2130901291) by changing a digit.

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, 561841 + ... + 565620.

It is an arithmetic number, because the mean of its divisors is an integer number (101471580).

Almost surely, 22130901290 is an apocalyptic number.

2130901290 is an abundant number, since it is smaller than the sum of its proper divisors (4363279830).

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

2130901290 is a wasteful number, since it uses less digits than its factorization.

2130901290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127484 (or 1127478 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2130901290 is about 46161.6863860063. The cubic root of 2130901290 is about 1286.8298034564.

The spelling of 2130901290 in words is "two billion, one hundred thirty million, nine hundred one thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 1127461 2254922 3382383 5637305 6764766 7892227 10147149 11274610 15784454 16911915 20294298 23676681 30441447 33823830 39461135 47353362 50735745 60882894 71030043 78922270 101471490 118383405 142060086 152207235 213090129 236766810 304414470 355150215 426180258 710300430 1065450645 2130901290