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31113110020230 = 23257311593093191
BaseRepresentation
bin1110001001100000101011…
…10111101110000010000110
311002011101101010120120001200
413010300111313232002012
513034224122131121410
6150101055422003330
76360563604426120
oct704602567560206
9132141333516050
1031113110020230
119a05aa5542307
1235a5b19716546
131448c5232a834
14797c4da5c210
1538e4cb6b03c0
hex1c4c15dee086

31113110020230 has 96 divisors (see below), whose sum is σ = 95432654573568. Its totient is φ = 6882162580800.

The previous prime is 31113110020211. The next prime is 31113110020231. The reversal of 31113110020230 is 3202001131113.

31113110020230 is a `hidden beast` number, since 311 + 1 + 3 + 1 + 100 + 20 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113110020231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 796527066 + ... + 796566125.

It is an arithmetic number, because the mean of its divisors is an integer number (994090151808).

Almost surely, 231113110020230 is an apocalyptic number.

31113110020230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31113110020230 is an abundant number, since it is smaller than the sum of its proper divisors (64319544553338).

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

31113110020230 is a wasteful number, since it uses less digits than its factorization.

31113110020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593093242 (or 1593093239 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31113110020230 its reverse (3202001131113), we get a palindrome (34315111151343).

The spelling of 31113110020230 in words is "thirty-one trillion, one hundred thirteen billion, one hundred ten million, twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 31 35 42 45 62 63 70 90 93 105 126 155 186 210 217 279 310 315 434 465 558 630 651 930 1085 1302 1395 1953 2170 2790 3255 3906 6510 9765 19530 1593093191 3186186382 4779279573 7965465955 9558559146 11151652337 14337838719 15930931910 22303304674 23896397865 28675677438 33454957011 47792795730 49385888921 55758261685 66909914022 71689193595 98771777842 100364871033 111516523370 143378387190 148157666763 167274785055 200729742066 246929444605 296315333526 334549570110 345701222447 444473000289 493858889210 501824355165 691402444894 740788333815 888946000578 1003648710330 1037103667341 1481576667630 1728506112235 2074207334682 2222365001445 3111311002023 3457012224470 4444730002890 5185518336705 6222622004046 10371036673410 15556555010115 31113110020230