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31001310300 = 22352296135813
BaseRepresentation
bin11100110111110100…
…100111010001011100
32222000112102201212210
4130313310213101130
51001442313412200
622124121400420
72145145534602
oct346764472134
988015381783
1031001310300
1112169482304
126012339110
132c009707bc
141701417872
15c169b8650
hex737d2745c

31001310300 has 144 divisors (see below), whose sum is σ = 92957487840. Its totient is φ = 7967554560.

The previous prime is 31001310293. The next prime is 31001310331. The reversal of 31001310300 is 301310013.

It is a super-3 number, since 3×310013103003 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5330194 + ... + 5336006.

It is an arithmetic number, because the mean of its divisors is an integer number (645538110).

Almost surely, 231001310300 is an apocalyptic number.

31001310300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31001310300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46478743920).

31001310300 is an abundant number, since it is smaller than the sum of its proper divisors (61956177540).

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

31001310300 is a wasteful number, since it uses less digits than its factorization.

31001310300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 31001310300 its reverse (301310013), we get a palindrome (31302620313).

The spelling of 31001310300 in words is "thirty-one billion, one million, three hundred ten thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 29 30 50 58 60 75 87 100 116 145 150 174 290 300 348 435 580 613 725 870 1226 1450 1740 1839 2175 2452 2900 3065 3678 4350 5813 6130 7356 8700 9195 11626 12260 15325 17439 17777 18390 23252 29065 30650 34878 35554 36780 45975 53331 58130 61300 69756 71108 87195 88885 91950 106662 116260 145325 168577 174390 177770 183900 213324 266655 290650 337154 348780 355540 435975 444425 505731 533310 581300 674308 842885 871950 888850 1011462 1066620 1333275 1685770 1743900 1777700 2022924 2528655 2666550 3371540 3563369 4214425 5057310 5333100 7126738 8428850 10114620 10690107 12643275 14253476 16857700 17816845 21380214 25286550 35633690 42760428 50573100 53450535 71267380 89084225 103337701 106901070 178168450 206675402 213802140 267252675 310013103 356336900 413350804 516688505 534505350 620026206 1033377010 1069010700 1240052412 1550065515 2066754020 2583442525 3100131030 5166885050 6200262060 7750327575 10333770100 15500655150 31001310300