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139878200 = 235271131293
BaseRepresentation
bin10000101011001…
…01111100111000
3100202012112211002
420111211330320
5241302100300
621514024132
73315642110
oct1025457470
9322175732
10139878200
1171a59620
123aa18048
1322c96a87
1414812040
15c4305d5
hex8565f38

139878200 has 192 divisors, whose sum is σ = 419973120. Its totient is φ = 42048000.

The previous prime is 139878199. The next prime is 139878217. The reversal of 139878200 is 2878931.

139878200 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 477254 + ... + 477546.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2139878200 is an apocalyptic number.

139878200 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 139878200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209986560).

139878200 is an abundant number, since it is smaller than the sum of its proper divisors (280094920).

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

139878200 is a wasteful number, since it uses less digits than its factorization.

139878200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 139878200 is about 11827.0114568305. The cubic root of 139878200 is about 519.0987841662.

The spelling of 139878200 in words is "one hundred thirty-nine million, eight hundred seventy-eight thousand, two hundred".