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31830455030 = 25112773113359
BaseRepresentation
bin11101101001001111…
…100011001011110110
310001011022121122121212
4131221033203023312
51010142044030110
622342301041422
72204534255303
oct355117431366
9101138548555
1031830455030
1112554509a90
126203b56272
13300368929a
14177d5ac0aa
15c6469ae05
hex7693e32f6

31830455030 has 64 divisors (see below), whose sum is σ = 62949519360. Its totient is φ = 11492419200.

The previous prime is 31830454993. The next prime is 31830455039. The reversal of 31830455030 is 3055403813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31830455039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9474491 + ... + 9477849.

It is an arithmetic number, because the mean of its divisors is an integer number (983586240).

Almost surely, 231830455030 is an apocalyptic number.

31830455030 is a deficient number, since it is larger than the sum of its proper divisors (31119064330).

31830455030 is a wasteful number, since it uses less digits than its factorization.

31830455030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 31830455030 its reverse (3055403813), we get a palindrome (34885858843).

The spelling of 31830455030 in words is "thirty-one billion, eight hundred thirty million, four hundred fifty-five thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 277 311 554 622 1385 1555 2770 3047 3110 3359 3421 6094 6718 6842 15235 16795 17105 30470 33590 34210 36949 73898 86147 172294 184745 369490 430735 861470 930443 947617 1044649 1860886 1895234 2089298 4652215 4738085 5223245 9304430 9476170 10234873 10446490 11491139 20469746 22982278 51174365 57455695 102348730 114911390 289367773 578735546 1446838865 2893677730 3183045503 6366091006 15915227515 31830455030