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140206080 = 213357163
BaseRepresentation
bin10000101101101…
…10000000000000
3100202211012120210
420112312000000
5241343043310
621525034120
73321506040
oct1026660000
9322735523
10140206080
11721629a3
123ab55940
13230800a1
1414899720
15c497820
hex85b6000

140206080 has 224 divisors, whose sum is σ = 515867904. Its totient is φ = 31850496.

The previous prime is 140206069. The next prime is 140206081. The reversal of 140206080 is 80602041.

140206080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140206081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860079 + ... + 860241.

Almost surely, 2140206080 is an apocalyptic number.

140206080 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 140206080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257933952).

140206080 is an abundant number, since it is smaller than the sum of its proper divisors (375661824).

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

140206080 is an equidigital number, since it uses as much as digits as its factorization.

140206080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 140206080 is about 11840.8648332797. The cubic root of 140206080 is about 519.5040636532.

It can be divided in two parts, 14020 and 6080, that added together give a triangular number (20100 = T200).

The spelling of 140206080 in words is "one hundred forty million, two hundred six thousand, eighty".