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140506800 = 24352743389
BaseRepresentation
bin10000101111111…
…11011010110000
3100210101111002120
420113333122300
5241432204200
621535314240
73324200550
oct1027773260
9323344076
10140506800
1172348925
123b07b980
1323156c25
1414937160
15c5069a0
hex85ff6b0

140506800 has 240 divisors, whose sum is σ = 527704320. Its totient is φ = 31288320.

The previous prime is 140506781. The next prime is 140506811. The reversal of 140506800 is 8605041.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 361006 + ... + 361394.

It is an arithmetic number, because the mean of its divisors is an integer number (2198768).

Almost surely, 2140506800 is an apocalyptic number.

140506800 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 140506800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263852160).

140506800 is an abundant number, since it is smaller than the sum of its proper divisors (387197520).

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

140506800 is a wasteful number, since it uses less digits than its factorization.

140506800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 140506800 is about 11853.5564283467. The cubic root of 140506800 is about 519.8752166067.

The spelling of 140506800 in words is "one hundred forty million, five hundred six thousand, eight hundred".