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3130431414440 = 23511101398917659
BaseRepresentation
bin101101100011011100010…
…000001010000010101000
3102002021012010222122102112
4231203130100022002220
5402242110420230230
610354033401221452
7442111002662351
oct55433420120250
912067163878375
103130431414440
11aa7676a17970
12426847191888
13199276bc4a45
14ab7297c2d28
155666a3c3d95
hex2d8dc40a0a8

3130431414440 has 128 divisors (see below), whose sum is σ = 7762248144000. Its totient is φ = 1126721664000.

The previous prime is 3130431414437. The next prime is 3130431414491. The reversal of 3130431414440 is 444141340313.

It is a junction number, because it is equal to n+sod(n) for n = 3130431414397 and 3130431414406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177262331 + ... + 177279989.

It is an arithmetic number, because the mean of its divisors is an integer number (60642563625).

Almost surely, 23130431414440 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 3130431414440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881124072000).

3130431414440 is an abundant number, since it is smaller than the sum of its proper divisors (4631816729560).

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

3130431414440 is a wasteful number, since it uses less digits than its factorization.

3130431414440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21771 (or 21767 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 3130431414440 its reverse (444141340313), we get a palindrome (3574572754753).

The spelling of 3130431414440 in words is "three trillion, one hundred thirty billion, four hundred thirty-one million, four hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 101 110 202 220 404 440 505 808 1010 1111 2020 2222 3989 4040 4444 5555 7978 8888 11110 15956 17659 19945 22220 31912 35318 39890 43879 44440 70636 79780 87758 88295 141272 159560 175516 176590 194249 219395 351032 353180 388498 402889 438790 706360 776996 805778 877580 971245 1553992 1611556 1755160 1783559 1942490 2014445 3223112 3567118 3884980 4028890 4431779 7134236 7769960 8057780 8863558 8917795 14268472 16115560 17727116 17835590 19619149 22158895 35454232 35671180 39238298 44317790 70441751 71342360 78476596 88635580 98095745 140883502 156953192 177271160 196191490 281767004 352208755 392382980 563534008 704417510 774859261 784765960 1408835020 1549718522 2817670040 3099437044 3874296305 6198874088 7114616851 7748592610 14229233702 15497185220 28458467404 30994370440 35573084255 56916934808 71146168510 78260785361 142292337020 156521570722 284584674040 313043141444 391303926805 626086282888 782607853610 1565215707220 3130431414440