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31000130300 = 22521513920477
BaseRepresentation
bin11100110111110000…
…000111001011111100
32222000110012210020002
4130313300013023330
51001442013132200
622124040213432
72145132521426
oct346760071374
988013183202
1031000130300
11121688467a7
126011a6a278
132c00649689
1417011cb816
15c16833bd5
hex737c072fc

31000130300 has 36 divisors (see below), whose sum is σ = 67278011640. Its totient is φ = 12398627520.

The previous prime is 31000130279. The next prime is 31000130311. The reversal of 31000130300 is 303100013.

It is a super-2 number, since 2×310001303002 (a number of 22 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 11 ways as a sum of consecutive naturals, for example, 1503662 + ... + 1524138.

Almost surely, 231000130300 is an apocalyptic number.

It is an amenable number.

31000130300 is an abundant number, since it is smaller than the sum of its proper divisors (36277881340).

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

31000130300 is a wasteful number, since it uses less digits than its factorization.

31000130300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35630 (or 35623 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

Adding to 31000130300 its reverse (303100013), we get a palindrome (31303230313).

The spelling of 31000130300 in words is "thirty-one billion, one hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 15139 20477 30278 40954 60556 75695 81908 102385 151390 204770 302780 378475 409540 511925 756950 1023850 1513900 2047700 310001303 620002606 1240005212 1550006515 3100013030 6200026060 7750032575 15500065150 31000130300