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231032312021310 = 235163328011440379
BaseRepresentation
bin110100100001111101100110…
…111000111100000100111110
31010022000110210001111222220120
4310201331212320330010332
5220240213133334140220
62135210440125555410
766443351031301602
oct6441754670740476
91108013701458816
10231032312021310
1167683287155138
1221ab3739a15b66
139bbb33b0527a7
14410a04893d502
151ba9a321a1a40
hexd21f66e3c13e

231032312021310 has 64 divisors (see below), whose sum is σ = 557896646926080. Its totient is φ = 61228740326400.

The previous prime is 231032312021297. The next prime is 231032312021351. The reversal of 231032312021310 is 13120213230132.

It is a super-2 number, since 2×2310323120213102 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159676701 + ... + 161117079.

It is an arithmetic number, because the mean of its divisors is an integer number (8717135108220).

Almost surely, 2231032312021310 is an apocalyptic number.

231032312021310 is an abundant number, since it is smaller than the sum of its proper divisors (326864334904770).

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

231032312021310 is a wasteful number, since it uses less digits than its factorization.

231032312021310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473353.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231032312021310 its reverse (13120213230132), we get a palindrome (244152525251442).

The spelling of 231032312021310 in words is "two hundred thirty-one trillion, thirty-two billion, three hundred twelve million, twenty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 163 326 489 815 978 1630 2445 4890 32801 65602 98403 164005 196806 328010 492015 984030 1440379 2880758 4321137 5346563 7201895 8642274 10693126 14403790 16039689 21605685 26732815 32079378 43211370 53465630 80198445 160396890 234781777 469563554 704345331 1173908885 1408690662 2347817770 3521726655 7043453310 47245871579 94491743158 141737614737 236229357895 283475229474 472458715790 708688073685 1417376147370 7701077067377 15402154134754 23103231202131 38505385336885 46206462404262 77010770673770 115516156010655 231032312021310