Base | Representation |
---|---|
bin | 10000101010100… |
… | …00101101010110 |
3 | 100202001010110111 |
4 | 20111100231112 |
5 | 241241304230 |
6 | 21512113234 |
7 | 3315130330 |
oct | 1025205526 |
9 | 322033414 |
10 | 139791190 |
11 | 719aa210 |
12 | 3a99581a |
13 | 22c662a6 |
14 | 147cc450 |
15 | c41492a |
hex | 8550b56 |
139791190 has 64 divisors (see below), whose sum is σ = 318256128. Its totient is φ = 42940800.
The previous prime is 139791161. The next prime is 139791193. The reversal of 139791190 is 91197931.
It is a super-2 number, since 2×1397911902 = 39083153603232200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (139791193) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53392 + ... + 55948.
It is an arithmetic number, because the mean of its divisors is an integer number (4972752).
Almost surely, 2139791190 is an apocalyptic number.
139791190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
139791190 is an abundant number, since it is smaller than the sum of its proper divisors (178464938).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139791190 is a wasteful number, since it uses less digits than its factorization.
139791190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2653.
The product of its (nonzero) digits is 15309, while the sum is 40.
The square root of 139791190 is about 11823.3324405601. The cubic root of 139791190 is about 518.9911282349.
The spelling of 139791190 in words is "one hundred thirty-nine million, seven hundred ninety-one thousand, one hundred ninety".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •