Search a number
-
+
20110341440 = 26578977831
BaseRepresentation
bin10010101110101010…
…110111010101000000
31220220112011012020202
4102232222313111000
5312141221411230
613123310224332
71311232040030
oct225652672500
956815135222
1020110341440
11858a8441a2
123a92ab50a8
131b864cc527
14d8ac098c0
157ca7b4a45
hex4aeab7540

20110341440 has 56 divisors (see below), whose sum is σ = 54728863872. Its totient is φ = 6894973440.

The previous prime is 20110341439. The next prime is 20110341457. The reversal of 20110341440 is 4414301102.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4486676 + ... + 4491155.

Almost surely, 220110341440 is an apocalyptic number.

20110341440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110341440 is an abundant number, since it is smaller than the sum of its proper divisors (34618522432).

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

20110341440 is an equidigital number, since it uses as much as digits as its factorization.

20110341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977855 (or 8977845 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20110341440 its reverse (4414301102), we get a palindrome (24524642542).

The spelling of 20110341440 in words is "twenty billion, one hundred ten million, three hundred forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 8977831 17955662 35911324 44889155 62844817 71822648 89778310 125689634 143645296 179556620 251379268 287290592 314224085 359113240 502758536 574581184 628448170 718226480 1005517072 1256896340 1436452960 2011034144 2513792680 2872905920 4022068288 5027585360 10055170720 20110341440