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139310080 = 2105713223
BaseRepresentation
bin10000100110110…
…11010000000000
3100201010200111121
420103123100000
5241130410310
621453522024
73311054560
oct1023332000
9321120447
10139310080
11717007a8
123a7a3314
1322b28300
1414704da0
15c36c0da
hex84db400

139310080 has 264 divisors, whose sum is σ = 431540352. Its totient is φ = 42172416.

The previous prime is 139310047. The next prime is 139310081. The reversal of 139310080 is 80013931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139310081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6056949 + ... + 6056971.

Almost surely, 2139310080 is an apocalyptic number.

139310080 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 139310080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215770176).

139310080 is an abundant number, since it is smaller than the sum of its proper divisors (292230272).

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

139310080 is a wasteful number, since it uses less digits than its factorization.

139310080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 139310080 is about 11802.9691179804. The cubic root of 139310080 is about 518.3950515201.

The spelling of 139310080 in words is "one hundred thirty-nine million, three hundred ten thousand, eighty".