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2215142210 = 251447915299
BaseRepresentation
bin1000010000001000…
…0110001101000010
312201101011212212002
42010002012031002
514014034022320
61003450104002
7105615253361
oct20402061502
95641155762
102215142210
11a37432146
12519a1b002
13293c03948
1417029d7d8
15ce70d675
hex84086342

2215142210 has 16 divisors (see below), whose sum is σ = 3987792000. Its totient is φ = 885937776.

The previous prime is 2215142183. The next prime is 2215142221. The reversal of 2215142210 is 122415122.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137141 + ... + 152439.

It is an arithmetic number, because the mean of its divisors is an integer number (249237000).

Almost surely, 22215142210 is an apocalyptic number.

2215142210 is a deficient number, since it is larger than the sum of its proper divisors (1772649790).

2215142210 is a wasteful number, since it uses less digits than its factorization.

2215142210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29785.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215142210 is about 47065.2973006652. The cubic root of 2215142210 is about 1303.5685404499.

Adding to 2215142210 its reverse (122415122), we get a palindrome (2337557332).

The spelling of 2215142210 in words is "two billion, two hundred fifteen million, one hundred forty-two thousand, two hundred ten".

Divisors: 1 2 5 10 14479 15299 28958 30598 72395 76495 144790 152990 221514221 443028442 1107571105 2215142210