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139132080 = 2435517421
BaseRepresentation
bin10000100101011…
…11110010110000
3100200210122100000
420102233302300
5241104211310
621450030000
73306413613
oct1022576260
9320718300
10139132080
1171599a9a
123a718300
1322a95299
141469a17a
15c3344c0
hex84afcb0

139132080 has 240 divisors, whose sum is σ = 514279584. Its totient is φ = 34836480.

The previous prime is 139132057. The next prime is 139132109. The reversal of 139132080 is 80231931.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330270 + ... + 330690.

Almost surely, 2139132080 is an apocalyptic number.

139132080 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 139132080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257139792).

139132080 is an abundant number, since it is smaller than the sum of its proper divisors (375147504).

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

139132080 is a wasteful number, since it uses less digits than its factorization.

139132080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139132080 is about 11795.4262322309. The cubic root of 139132080 is about 518.1741686103.

The spelling of 139132080 in words is "one hundred thirty-nine million, one hundred thirty-two thousand, eighty".