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20242401140 = 2251377855389
BaseRepresentation
bin10010110110100010…
…101000011101110100
31221020201122112002202
4102312202220131310
5312424023314030
613144344524032
71314424366523
oct226642503564
957221575082
1020242401140
118648342645
123b0b180618
131ba7989670
14da05844ba
157d719d745
hex4b68a8774

20242401140 has 24 divisors (see below), whose sum is σ = 45778969320. Its totient is φ = 7474117248.

The previous prime is 20242401119. The next prime is 20242401163. The reversal of 20242401140 is 4110424202.

It can be written as a sum of positive squares in 4 ways, for example, as 199769956 + 20042631184 = 14134^2 + 141572^2 .

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, 38927435 + ... + 38927954.

It is an arithmetic number, because the mean of its divisors is an integer number (1907457055).

Almost surely, 220242401140 is an apocalyptic number.

20242401140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242401140 is an abundant number, since it is smaller than the sum of its proper divisors (25536568180).

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

20242401140 is a wasteful number, since it uses less digits than its factorization.

20242401140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77855411 (or 77855409 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20242401140 its reverse (4110424202), we get a palindrome (24352825342).

The spelling of 20242401140 in words is "twenty billion, two hundred forty-two million, four hundred one thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 77855389 155710778 311421556 389276945 778553890 1012120057 1557107780 2024240114 4048480228 5060600285 10121200570 20242401140