| Base | Representation |
|---|---|
| bin | 10000101001111… |
| … | …01011101001000 |
| 3 | 100201220010021200 |
| 4 | 20110331131020 |
| 5 | 241231243303 |
| 6 | 21510304200 |
| 7 | 3314351400 |
| oct | 1024753510 |
| 9 | 321803250 |
| 10 | 139712328 |
| 11 | 71955a38 |
| 12 | 3a958060 |
| 13 | 22c39422 |
| 14 | 147ab800 |
| 15 | c3eb3a3 |
| hex | 853d748 |
139712328 has 108 divisors (see below), whose sum is σ = 442388115. Its totient is φ = 39717216.
The previous prime is 139712317. The next prime is 139712411. The reversal of 139712328 is 823217931.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 69856164 + 69856164 = 8358^2 + 8358^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=8358.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 139712292 and 139712301.
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 26 ways as a sum of consecutive naturals, for example, 701973 + ... + 702171.
Almost surely, 2139712328 is an apocalyptic number.
139712328 is a gapful number since it is divisible by the number (18) 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 139712328
139712328 is an abundant number, since it is smaller than the sum of its proper divisors (302675787).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139712328 is a wasteful number, since it uses less digits than its factorization.
139712328 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 424 (or 211 counting only the distinct ones).
The product of its digits is 18144, while the sum is 36.
The square root of 139712328 is about 11819.9969543143. The cubic root of 139712328 is about 518.8935150799.
The spelling of 139712328 in words is "one hundred thirty-nine million, seven hundred twelve thousand, three hundred twenty-eight".
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