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2072620290 = 235135314411
BaseRepresentation
bin111101110001001…
…1010110100000010
312100110000000112110
41323202122310002
513221042322130
6541355240150
7102234660516
oct17342326402
95313000473
102072620290
11973a38334
1249a149056
13270522750
141593a0146
15c1e59ab0
hex7b89ad02

2072620290 has 32 divisors (see below), whose sum is σ = 5356927296. Its totient is φ = 510183360.

The previous prime is 2072620273. The next prime is 2072620357. The reversal of 2072620290 is 920262702.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656816 + ... + 2657595.

It is an arithmetic number, because the mean of its divisors is an integer number (167403978).

Almost surely, 22072620290 is an apocalyptic number.

2072620290 is an abundant number, since it is smaller than the sum of its proper divisors (3284307006).

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

2072620290 is a wasteful number, since it uses less digits than its factorization.

2072620290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314434.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2072620290 is about 45526.0396915875. The cubic root of 2072620290 is about 1274.9894224420.

Adding to 2072620290 its reverse (920262702), we get a palindrome (2992882992).

The spelling of 2072620290 in words is "two billion, seventy-two million, six hundred twenty thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 5314411 10628822 15943233 26572055 31886466 53144110 69087343 79716165 138174686 159432330 207262029 345436715 414524058 690873430 1036310145 2072620290