Base | Representation |
---|---|
bin | 10010011111110… |
… | …00111101101111 |
3 | 101210221222002122 |
4 | 21033320331233 |
5 | 304210113211 |
6 | 23221343155 |
7 | 3562561526 |
oct | 1117707557 |
9 | 353858078 |
10 | 155160431 |
11 | 7a647368 |
12 | 43b67abb |
13 | 261b7a0a |
14 | 1686d4bd |
15 | d94d6db |
hex | 93f8f6f |
155160431 has 8 divisors (see below), whose sum is σ = 156579264. Its totient is φ = 153747360.
The previous prime is 155160427. The next prime is 155160433. The reversal of 155160431 is 134061551.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 155160431 - 22 = 155160427 is a prime.
It is a super-2 number, since 2×1551604312 = 48149518696211522, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 155160431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (155160433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66521 + ... + 68813.
It is an arithmetic number, because the mean of its divisors is an integer number (19572408).
Almost surely, 2155160431 is an apocalyptic number.
155160431 is a deficient number, since it is larger than the sum of its proper divisors (1418833).
155160431 is a wasteful number, since it uses less digits than its factorization.
155160431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2881.
The product of its (nonzero) digits is 1800, while the sum is 26.
The square root of 155160431 is about 12456.3409956536. The cubic root of 155160431 is about 537.3538016659.
The spelling of 155160431 in words is "one hundred fifty-five million, one hundred sixty thousand, four hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •