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20323011310 = 2573143353617
BaseRepresentation
bin10010111011010110…
…001000101011101110
31221110100022221110121
4102323112020223232
5313110142330220
613200344355154
71316423513560
oct227326105356
957410287417
1020323011310
1186898a0218
123b32175aba
131bbb5a16a4
14dab169330
157de2c2eaa
hex4bb588aee

20323011310 has 128 divisors (see below), whose sum is σ = 44356460544. Its totient is φ = 6556999680.

The previous prime is 20323011307. The next prime is 20323011337. The reversal of 20323011310 is 1311032302.

It is a super-2 number, since 2×203230113102 (a number of 21 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 32938122 + ... + 32938738.

It is an arithmetic number, because the mean of its divisors is an integer number (346534848).

Almost surely, 220323011310 is an apocalyptic number.

20323011310 is an abundant number, since it is smaller than the sum of its proper divisors (24033449234).

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

20323011310 is a wasteful number, since it uses less digits than its factorization.

20323011310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20323011310 its reverse (1311032302), we get a palindrome (21634043612).

The spelling of 20323011310 in words is "twenty billion, three hundred twenty-three million, eleven thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 31 35 43 62 70 86 155 215 217 301 310 353 430 434 602 617 706 1085 1234 1333 1505 1765 2170 2471 2666 3010 3085 3530 4319 4942 6170 6665 8638 9331 10943 12355 13330 15179 18662 19127 21595 21886 24710 26531 30358 38254 43190 46655 53062 54715 75895 76601 93310 95635 106253 109430 132655 133889 151790 153202 185717 191270 212506 217801 265310 267778 371434 383005 435602 470549 531265 669445 766010 822461 928585 941098 1062530 1089005 1338890 1524607 1644922 1857170 2178010 2352745 3049214 3293843 4112305 4705490 5757227 6587686 6751831 7623035 8224610 9365443 11514454 13503662 15246070 16469215 18730886 28786135 32938430 33759155 46827215 47262817 57572270 65558101 67518310 93654430 94525634 131116202 236314085 290328733 327790505 472628170 580657466 655581010 1451643665 2032301131 2903287330 4064602262 10161505655 20323011310