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2002122280 = 23579633583
BaseRepresentation
bin111011101010101…
…1111011000101000
312011112100100110001
41313111133120220
513100020403110
6530400232344
7100420521124
oct16725373050
95145310401
102002122280
11938167114
1247a60b6b4
1325ba3b352
1414dc8c584
15bab8163a
hex7755f628

2002122280 has 32 divisors (see below), whose sum is σ = 4561804800. Its totient is φ = 790710336.

The previous prime is 2002122233. The next prime is 2002122307. The reversal of 2002122280 is 822212002.

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, 313632 + ... + 319951.

It is an arithmetic number, because the mean of its divisors is an integer number (142556400).

Almost surely, 22002122280 is an apocalyptic number.

2002122280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002122280 is an abundant number, since it is smaller than the sum of its proper divisors (2559682520).

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

2002122280 is a wasteful number, since it uses less digits than its factorization.

2002122280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633673 (or 633669 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2002122280 is about 44745.0810704372. The cubic root of 2002122280 is about 1260.3665432294.

Adding to 2002122280 its reverse (822212002), we get a palindrome (2824334282).

The spelling of 2002122280 in words is "two billion, two million, one hundred twenty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 633583 1267166 2534332 3167915 5068664 6335830 12671660 25343320 50053057 100106114 200212228 250265285 400424456 500530570 1001061140 2002122280