Base | Representation |
---|---|
bin | 10010011000000… |
… | …01010101100000 |
3 | 101202001102202110 |
4 | 21030001111200 |
5 | 303430134034 |
6 | 23143515320 |
7 | 3551135445 |
oct | 1114012540 |
9 | 352042673 |
10 | 154146144 |
11 | 7a014309 |
12 | 43758b40 |
13 | 25c21149 |
14 | 166879cc |
15 | d7ecde9 |
hex | 9301560 |
154146144 has 48 divisors (see below), whose sum is σ = 415579248. Its totient is φ = 49992192.
The previous prime is 154146137. The next prime is 154146149. The reversal of 154146144 is 441641451.
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×1541461442 = 47522067420137472, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (154146149) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18147 + ... + 25250.
It is an arithmetic number, because the mean of its divisors is an integer number (8657901).
Almost surely, 2154146144 is an apocalyptic number.
It is an amenable number.
154146144 is an abundant number, since it is smaller than the sum of its proper divisors (261433104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154146144 is a wasteful number, since it uses less digits than its factorization.
154146144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43447 (or 43439 counting only the distinct ones).
The product of its digits is 7680, while the sum is 30.
The square root of 154146144 is about 12415.5605592337. The cubic root of 154146144 is about 536.1803432651.
Adding to 154146144 its reverse (441641451), we get a palindrome (595787595).
It can be divided in two parts, 154146 and 144, that added together give a triangular number (154290 = T555).
The spelling of 154146144 in words is "one hundred fifty-four million, one hundred forty-six thousand, one hundred forty-four".
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