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139280300 = 22521392803
BaseRepresentation
bin10000100110100…
…11111110101100
3100201002011122122
420103103332230
5241123432200
621453132112
73310602005
oct1023237654
9321064578
10139280300
1171690395
123a78a038
1322b178a3
14146d81ac
15c363385
hex84d3fac

139280300 has 18 divisors (see below), whose sum is σ = 302238468. Its totient is φ = 55712080.

The previous prime is 139280291. The next prime is 139280327. The reversal of 139280300 is 3082931.

139280300 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

139280300 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 139280300.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696302 + ... + 696501.

It is an arithmetic number, because the mean of its divisors is an integer number (16791026).

Almost surely, 2139280300 is an apocalyptic number.

139280300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139280300 is an abundant number, since it is smaller than the sum of its proper divisors (162958168).

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

139280300 is a wasteful number, since it uses less digits than its factorization.

139280300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392817 (or 1392810 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 139280300 is about 11801.7075035776. The cubic root of 139280300 is about 518.3581101760.

The spelling of 139280300 in words is "one hundred thirty-nine million, two hundred eighty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1392803 2785606 5571212 6964015 13928030 27856060 34820075 69640150 139280300