Search a number
-
+
31220441144410 = 257274998496491
BaseRepresentation
bin1110001100101000100110…
…10011011101110001011010
311002112122102020000121002011
413012110103103131301122
513043003430413110120
6150222250032300134
76401413431063400
oct706242323356132
9132478366017064
1031220441144410
119a47573124521
1236028926a164a
1314560c891a87b
1479d1125d1470
153921ae31ec5a
hex1c65134ddc5a

31220441144410 has 48 divisors (see below), whose sum is σ = 65380505940000. Its totient is φ = 10702722579360.

The previous prime is 31220441144381. The next prime is 31220441144461. The reversal of 31220441144410 is 1444114402213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 573736 + ... + 7922755.

It is an arithmetic number, because the mean of its divisors is an integer number (1362093873750).

Almost surely, 231220441144410 is an apocalyptic number.

31220441144410 is an abundant number, since it is smaller than the sum of its proper divisors (34160064795590).

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

31220441144410 is a wasteful number, since it uses less digits than its factorization.

31220441144410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504011 (or 8504004 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 31220441144410 its reverse (1444114402213), we get a palindrome (32664555546623).

The spelling of 31220441144410 in words is "thirty-one trillion, two hundred twenty billion, four hundred forty-one million, one hundred forty-four thousand, four hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 7499 14998 37495 52493 74990 104986 262465 367451 524930 734902 1837255 3674510 8496491 16992982 42482455 59475437 84964910 118950874 297377185 416328059 594754370 832656118 2081640295 4163280590 63715186009 127430372018 318575930045 446006302063 637151860090 892012604126 2230031510315 3122044114441 4460063020630 6244088228882 15610220572205 31220441144410