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139075200 = 27325211439
BaseRepresentation
bin10000100101000…
…01111010000000
3100200200202022100
420102201322000
5241100401300
621444510400
73306056025
oct1022417200
9320622270
10139075200
1171560290
123a6ab400
1322a75424
141468354c
15c322700
hex84a1e80

139075200 has 288 divisors, whose sum is σ = 542599200. Its totient is φ = 33638400.

The previous prime is 139075177. The next prime is 139075217. The reversal of 139075200 is 2570931.

139075200 is a `hidden beast` number, since 1 + 390 + 75 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×1390752002 = 38683822510080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 316581 + ... + 317019.

It is an arithmetic number, because the mean of its divisors is an integer number (1884025).

Almost surely, 2139075200 is an apocalyptic number.

139075200 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 139075200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271299600).

139075200 is an abundant number, since it is smaller than the sum of its proper divisors (403524000).

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

139075200 is a wasteful number, since it uses less digits than its factorization.

139075200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 139075200 is about 11793.0148817001. The cubic root of 139075200 is about 518.1035456356.

The spelling of 139075200 in words is "one hundred thirty-nine million, seventy-five thousand, two hundred".