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31301300032230 = 2357571378304713
BaseRepresentation
bin1110001110111111001101…
…10111101001001011100110
311002211101010102021200200010
413013133212313221023212
513100320030302012410
6150323341351031050
76410305252224204
oct707374667511346
9132741112250603
1031301300032230
119a78896932748
12361649a06b486
131460913983217
147a2dc3464074
15394342de8c20
hex1c77e6de92e6

31301300032230 has 32 divisors (see below), whose sum is σ = 75222358071264. Its totient is φ = 8335986898176.

The previous prime is 31301300032213. The next prime is 31301300032237. The reversal of 31301300032230 is 3223000310313.

It is a junction number, because it is equal to n+sod(n) for n = 31301300032197 and 31301300032206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301300032237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 689129647 + ... + 689175066.

It is an arithmetic number, because the mean of its divisors is an integer number (2350698689727).

Almost surely, 231301300032230 is an apocalyptic number.

31301300032230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31301300032230 is an abundant number, since it is smaller than the sum of its proper divisors (43921058039034).

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

31301300032230 is a wasteful number, since it uses less digits than its factorization.

31301300032230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378305480.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31301300032230 its reverse (3223000310313), we get a palindrome (34524300342543).

The spelling of 31301300032230 in words is "thirty-one trillion, three hundred one billion, three hundred million, thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 757 1514 2271 3785 4542 7570 11355 22710 1378304713 2756609426 4134914139 6891523565 8269828278 13783047130 20674570695 41349141390 1043376667741 2086753335482 3130130003223 5216883338705 6260260006446 10433766677410 15650650016115 31301300032230