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31030033023030 = 2355476432940781
BaseRepresentation
bin1110000111000101111100…
…00110001000000000110110
311001212102221100112211102110
413003202332012020000312
513031344001423214110
6145555000025351450
76351563100543156
oct703427606100066
9131772840484373
1031030033023030
119983843765738
1235919b3338586
131441172892b22
14793c0c396766
1538c267edda20
hex1c38be188036

31030033023030 has 64 divisors (see below), whose sum is σ = 74724282517248. Its totient is φ = 8246699959680.

The previous prime is 31030033023001. The next prime is 31030033023097. The reversal of 31030033023030 is 3032033003013.

It is a junction number, because it is equal to n+sod(n) for n = 31030033022988 and 31030033023006.

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, 9081240 + ... + 12022020.

It is an arithmetic number, because the mean of its divisors is an integer number (1167566914332).

Almost surely, 231030033023030 is an apocalyptic number.

31030033023030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31030033023030 is an abundant number, since it is smaller than the sum of its proper divisors (43694249494218).

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

31030033023030 is a wasteful number, since it uses less digits than its factorization.

31030033023030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941981.

The product of its (nonzero) digits is 1458, while the sum is 21.

Adding to 31030033023030 its reverse (3032033003013), we get a palindrome (34062066026043).

The spelling of 31030033023030 in words is "thirty-one trillion, thirty billion, thirty-three million, twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 547 643 1094 1286 1641 1929 2735 3215 3282 3858 5470 6430 8205 9645 16410 19290 351721 703442 1055163 1758605 2110326 2940781 3517210 5275815 5881562 8822343 10551630 14703905 17644686 29407810 44111715 88223430 1608607207 1890922183 3217214414 3781844366 4825821621 5672766549 8043036035 9454610915 9651643242 11345533098 16086072070 18909221830 24129108105 28363832745 48258216210 56727665490 1034334434101 2068668868202 3103003302303 5171672170505 6206006604606 10343344341010 15515016511515 31030033023030