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31441200100 = 225223432571237
BaseRepresentation
bin11101010010000010…
…101010001111100100
310000011012011110020121
4131102002222033210
51003342421400400
622235514011324
72162066535262
oct352202521744
9100135143217
1031441200100
1112374812aa2
126115716b44
132c70b3a71b
141743a03432
15c4040b21a
hex7520aa3e4

31441200100 has 144 divisors (see below), whose sum is σ = 73192065408. Its totient is φ = 11694735360.

The previous prime is 31441200073. The next prime is 31441200121. The reversal of 31441200100 is 100214413.

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, 25416682 + ... + 25417918.

It is an arithmetic number, because the mean of its divisors is an integer number (508278232).

Almost surely, 231441200100 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 31441200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36596032704).

31441200100 is an abundant number, since it is smaller than the sum of its proper divisors (41750865308).

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

31441200100 is a wasteful number, since it uses less digits than its factorization.

31441200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31441200100 its reverse (100214413), we get a palindrome (31541414513).

The spelling of 31441200100 in words is "thirty-one billion, four hundred forty-one million, two hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 23 25 43 46 50 86 92 100 115 172 215 230 257 430 460 514 575 860 989 1028 1075 1150 1237 1285 1978 2150 2300 2474 2570 3956 4300 4945 4948 5140 5911 6185 6425 9890 11051 11822 12370 12850 19780 22102 23644 24725 24740 25700 28451 29555 30925 44204 49450 53191 55255 56902 59110 61850 98900 106382 110510 113804 118220 123700 142255 147775 212764 221020 254173 265955 276275 284510 295550 317909 508346 531910 552550 569020 591100 635818 711275 1016692 1063820 1105100 1223393 1270865 1271636 1329775 1422550 1589545 2446786 2541730 2659550 2845100 3179090 4893572 5083460 5319100 6116965 6354325 6358180 7311907 7947725 12233930 12708650 13670087 14623814 15895450 24467860 25417300 27340174 29247628 30584825 31790900 36559535 54680348 61169650 68350435 73119070 122339300 136700870 146238140 182797675 273401740 314412001 341752175 365595350 628824002 683504350 731190700 1257648004 1367008700 1572060005 3144120010 6288240020 7860300025 15720600050 31441200100