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140444444 = 2275015873
BaseRepresentation
bin10000101111100…
…00001100011100
3100210021022120002
420113300030130
5241423210234
621534113432
73323521010
oct1027601434
9323238502
10140444444
1172305a98
123b04b878
132313472a
141491c540
15c4e327e
hex85f031c

140444444 has 12 divisors (see below), whose sum is σ = 280888944. Its totient is φ = 60190464.

The previous prime is 140444443. The next prime is 140444453. The reversal of 140444444 is 444444041.

Adding to 140444444 its reverse (444444041), we get a palindrome (584888485).

140444444 is an admirable number.

140444444 is a modest number, since divided by 44444 gives 1404 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507909 + ... + 2507964.

It is an arithmetic number, because the mean of its divisors is an integer number (23407412).

Almost surely, 2140444444 is an apocalyptic number.

140444444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140444444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140444444 is a wasteful number, since it uses less digits than its factorization.

140444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015884 (or 5015882 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

The square root of 140444444 is about 11850.9258710027. The cubic root of 140444444 is about 519.7982994854.

The spelling of 140444444 in words is "one hundred forty million, four hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 5015873 10031746 20063492 35111111 70222222 140444444