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31012303010200 = 23522772531221173
BaseRepresentation
bin1110000110100100111010…
…10011011111100110011000
311001210202011201101212011121
413003102131103133212120
513031101144032311300
6145542504425535024
76350364531116521
oct703223523374630
9131722151355147
1031012303010200
119977275618676
12358a485644474
13143c5a8582585
14793009769848
1538ba7b6b681a
hex1c349d4df998

31012303010200 has 96 divisors (see below), whose sum is σ = 72392824665360. Its totient is φ = 12355198732800.

The previous prime is 31012303010177. The next prime is 31012303010257. The reversal of 31012303010200 is 201030321013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140106814 + ... + 140327986.

Almost surely, 231012303010200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31012303010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36196412332680).

31012303010200 is an abundant number, since it is smaller than the sum of its proper divisors (41380521655160).

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

31012303010200 is a wasteful number, since it uses less digits than its factorization.

31012303010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223997 (or 223988 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31012303010200 its reverse (201030321013), we get a palindrome (31213333331213).

The spelling of 31012303010200 in words is "thirty-one trillion, twelve billion, three hundred three million, ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 277 554 1108 1385 2216 2531 2770 5062 5540 6925 10124 11080 12655 13850 20248 25310 27700 50620 55400 63275 101240 126550 221173 253100 442346 506200 701087 884692 1105865 1402174 1769384 2211730 2804348 3505435 4423460 5529325 5608696 7010870 8846920 11058650 14021740 17527175 22117300 28043480 35054350 44234600 61264921 70108700 122529842 140217400 245059684 306324605 490119368 559788863 612649210 1119577726 1225298420 1531623025 2239155452 2450596840 2798944315 3063246050 4478310904 5597888630 6126492100 11195777260 12252984200 13994721575 22391554520 27989443150 55978886300 111957772600 155061515051 310123030102 620246060204 775307575255 1240492120408 1550615150510 3101230301020 3876537876275 6202460602040 7753075752550 15506151505100 31012303010200