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139092260 = 2256954613
BaseRepresentation
bin10000100101001…
…10000100100100
3100200201121201012
420102212010210
5241101423020
621445121352
73306156536
oct1022460444
9320647635
10139092260
117157208a
123a6b9258
1322a80118
1414689856
15c3277c5
hex84a6124

139092260 has 12 divisors (see below), whose sum is σ = 292093788. Its totient is φ = 55636896.

The previous prime is 139092259. The next prime is 139092269. The reversal of 139092260 is 62290931.

It can be written as a sum of positive squares in 2 ways, for example, as 62599744 + 76492516 = 7912^2 + 8746^2 .

It is a super-3 number, since 3×1390922603 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (139092269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3477287 + ... + 3477326.

It is an arithmetic number, because the mean of its divisors is an integer number (24341149).

Almost surely, 2139092260 is an apocalyptic number.

139092260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139092260 is an abundant number, since it is smaller than the sum of its proper divisors (153001528).

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

139092260 is a wasteful number, since it uses less digits than its factorization.

139092260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954622 (or 6954620 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 139092260 is about 11793.7381690455. The cubic root of 139092260 is about 518.1247295828.

The spelling of 139092260 in words is "one hundred thirty-nine million, ninety-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 6954613 13909226 27818452 34773065 69546130 139092260