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31335445141 = 7112133191801
BaseRepresentation
bin11101001011101111…
…001111001010010101
32222212211011112201021
4131023233033022111
51003133333221031
622221215201141
72156343613630
oct351357171225
988784145637
1031335445141
1112320050800
1260a62161b1
132c54c60620
141733954c17
15c35ebb511
hex74bbcf295

31335445141 has 48 divisors (see below), whose sum is σ = 43759442944. Its totient is φ = 21811680000.

The previous prime is 31335445133. The next prime is 31335445147. The reversal of 31335445141 is 14154453313.

It is not a de Polignac number, because 31335445141 - 23 = 31335445133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31335445097 and 31335445106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31335445147) 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, 295441 + ... + 387241.

Almost surely, 231335445141 is an apocalyptic number.

31335445141 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31335445141 is a deficient number, since it is larger than the sum of its proper divisors (12423997803).

31335445141 is a wasteful number, since it uses less digits than its factorization.

31335445141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91874 (or 91863 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

Adding to 31335445141 its reverse (14154453313), we get a palindrome (45489898454).

The spelling of 31335445141 in words is "thirty-one billion, three hundred thirty-five million, four hundred forty-five thousand, one hundred forty-one".

Divisors: 1 7 11 13 31 77 91 121 143 217 341 403 847 1001 1573 2387 2821 3751 4433 11011 26257 31031 48763 91801 341341 642607 1009811 1193413 2845831 7068677 8353891 11107921 13127543 19920817 31304141 36995803 77755447 91892801 144402973 219128987 258970621 344345551 406953833 1010820811 2410418857 2848676831 4476492163 31335445141