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31020202223322 = 2313462186062519
BaseRepresentation
bin1110000110110011101000…
…01000100110011011011010
311001211111120020011110110120
413003121310020212123122
513031213333232121242
6145550252325254110
76351064346246424
oct703316410463332
9131744506143416
1031020202223322
11997a659507384
12358bb0ab64336
131440266c67990
147935588b9814
1538bd8ee041ec
hex1c36742266da

31020202223322 has 32 divisors (see below), whose sum is σ = 66827202529920. Its totient is φ = 9542611995840.

The previous prime is 31020202223279. The next prime is 31020202223369. The reversal of 31020202223322 is 22332220202013.

It is a junction number, because it is equal to n+sod(n) for n = 31020202223292 and 31020202223301.

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, 42670822 + ... + 43391697.

It is an arithmetic number, because the mean of its divisors is an integer number (2088350079060).

Almost surely, 231020202223322 is an apocalyptic number.

31020202223322 is an abundant number, since it is smaller than the sum of its proper divisors (35807000306598).

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

31020202223322 is a wasteful number, since it uses less digits than its factorization.

31020202223322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86067158.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31020202223322 its reverse (22332220202013), we get a palindrome (53352422425335).

The spelling of 31020202223322 in words is "thirty-one trillion, twenty billion, two hundred two million, two hundred twenty-three thousand, three hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 4621 9242 13863 27726 60073 120146 180219 360438 86062519 172125038 258187557 516375114 1118812747 2237625494 3356438241 6712876482 397694900299 795389800598 1193084700897 2386169401794 5170033703887 10340067407774 15510101111661 31020202223322