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139325380 = 22541169909
BaseRepresentation
bin10000100110111…
…10111111000100
3100201011110111021
420103132333010
5241131403010
621454120524
73311150305
oct1023367704
9321143437
10139325380
1171711247
123a7b0144
1322b3226c
141470a7ac
15c3718da
hex84defc4

139325380 has 24 divisors (see below), whose sum is σ = 299721240. Its totient is φ = 54370560.

The previous prime is 139325371. The next prime is 139325413. The reversal of 139325380 is 83523931.

It can be written as a sum of positive squares in 4 ways, for example, as 6061444 + 133263936 = 2462^2 + 11544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84135 + ... + 85774.

It is an arithmetic number, because the mean of its divisors is an integer number (12488385).

Almost surely, 2139325380 is an apocalyptic number.

139325380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139325380 is an abundant number, since it is smaller than the sum of its proper divisors (160395860).

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

139325380 is a wasteful number, since it uses less digits than its factorization.

139325380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169959 (or 169957 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 139325380 is about 11803.6172421847. The cubic root of 139325380 is about 518.4140287397.

The spelling of 139325380 in words is "one hundred thirty-nine million, three hundred twenty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 169909 339818 679636 849545 1699090 3398180 6966269 13932538 27865076 34831345 69662690 139325380