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2031003390 = 235137736737
BaseRepresentation
bin111100100001110…
…1010011011111110
312020112200122212210
41321003222123332
513124414102030
6533311241250
7101221146453
oct17103523376
95215618783
102031003390
119524a29a9
12488219226
13264a10c70
14153a4982a
15bd488bb0
hex790ea6fe

2031003390 has 64 divisors (see below), whose sum is σ = 5256933696. Its totient is φ = 499218432.

The previous prime is 2031003389. The next prime is 2031003421. The reversal of 2031003390 is 933001302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298102 + ... + 304838.

It is an arithmetic number, because the mean of its divisors is an integer number (82139589).

Almost surely, 22031003390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031003390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628466848).

2031003390 is an abundant number, since it is smaller than the sum of its proper divisors (3225930306).

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

2031003390 is a wasteful number, since it uses less digits than its factorization.

2031003390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 2031003390 is about 45066.6549679472. The cubic root of 2031003390 is about 1266.3980003439.

Adding to 2031003390 its reverse (933001302), we get a palindrome (2964004692).

The spelling of 2031003390 in words is "two billion, thirty-one million, three thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 773 1546 2319 3865 4638 6737 7730 10049 11595 13474 20098 20211 23190 30147 33685 40422 50245 60294 67370 87581 100490 101055 150735 175162 202110 262743 301470 437905 525486 875810 1313715 2627430 5207701 10415402 15623103 26038505 31246206 52077010 67700113 78115515 135400226 156231030 203100339 338500565 406200678 677001130 1015501695 2031003390