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BaseRepresentation
bin10000101111011…
…11001100000000
3100210021002220100
420113233030000
5241423042240
621534042400
73323502666
oct1027571400
9323232810
10140440320
1172302989
123b049400
13231328a7
141491ac36
15c4e1e30
hex85ef300

140440320 has 216 divisors, whose sum is σ = 495514656. Its totient is φ = 36716544.

The previous prime is 140440297. The next prime is 140440331. The reversal of 140440320 is 23044041.

Adding to 140440320 its reverse (23044041), we get a palindrome (163484361).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140440293 and 140440302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840877 + ... + 841043.

Almost surely, 2140440320 is an apocalyptic number.

140440320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140440320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247757328).

140440320 is an abundant number, since it is smaller than the sum of its proper divisors (355074336).

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

140440320 is a wasteful number, since it uses less digits than its factorization.

140440320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140440320 is about 11850.7518748812. The cubic root of 140440320 is about 519.7932116630.

The spelling of 140440320 in words is "one hundred forty million, four hundred forty thousand, three hundred twenty".