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3131310122000 = 24531565655061
BaseRepresentation
bin101101100100010000101…
…000001010010000010000
3102002100110101102121120222
4231210100220022100100
5402300410342401000
610354300511052212
7442141532610104
oct55442050122020
912070411377528
103131310122000
11aa7a87a26965
12426a51511068
13199386c74948
14ab7b0399904
15566bc5e6a85
hex2d910a0a410

3131310122000 has 40 divisors (see below), whose sum is σ = 7571507879832. Its totient is φ = 1252524048000.

The previous prime is 3131310121993. The next prime is 3131310122029. The reversal of 3131310122000 is 2210131313.

It can be written as a sum of positive squares in 4 ways, for example, as 844391912464 + 2286918209536 = 918908^2 + 1512256^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3131310122000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782825531 + ... + 782829530.

Almost surely, 23131310122000 is an apocalyptic number.

It is an amenable number.

3131310122000 is an abundant number, since it is smaller than the sum of its proper divisors (4440197757832).

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

3131310122000 is a wasteful number, since it uses less digits than its factorization.

3131310122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565655084 (or 1565655068 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 3131310122000 its reverse (2210131313), we get a palindrome (3133520253313).

The spelling of 3131310122000 in words is "three trillion, one hundred thirty-one billion, three hundred ten million, one hundred twenty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 1565655061 3131310122 6262620244 7828275305 12525240488 15656550610 25050480976 31313101220 39141376525 62626202440 78282753050 125252404880 156565506100 195706882625 313131012200 391413765250 626262024400 782827530500 1565655061000 3131310122000