Search a number
-
+
1220033061420 = 223530766234151
BaseRepresentation
bin10001110000001111101…
…000110010001000101100
311022122010012110001222020
4101300033220302020230
5124442111430431140
62332250410350140
7154100361625635
oct21601750621054
94278105401866
101220033061420
1143045a9476a8
1217854a72b350
138b082a99bc4
144309ad7888c
1521b087d76d0
hex11c0fa3222c

1220033061420 has 48 divisors (see below), whose sum is σ = 3427219961088. Its totient is φ = 324282398400.

The previous prime is 1220033061397. The next prime is 1220033061433. The reversal of 1220033061420 is 241603300221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33098656 + ... + 33135495.

It is an arithmetic number, because the mean of its divisors is an integer number (71400415856).

Almost surely, 21220033061420 is an apocalyptic number.

1220033061420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220033061420 is an abundant number, since it is smaller than the sum of its proper divisors (2207186899668).

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

1220033061420 is a wasteful number, since it uses less digits than its factorization.

1220033061420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66234470 (or 66234468 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1220033061420 its reverse (241603300221), we get a palindrome (1461636361641).

The spelling of 1220033061420 in words is "one trillion, two hundred twenty billion, thirty-three million, sixty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 307 614 921 1228 1535 1842 3070 3684 4605 6140 9210 18420 66234151 132468302 198702453 264936604 331170755 397404906 662341510 794809812 993512265 1324683020 1987024530 3974049060 20333884357 40667768714 61001653071 81335537428 101669421785 122003306142 203338843570 244006612284 305008265355 406677687140 610016530710 1220033061420