Base | Representation |
---|---|
bin | 10010011001110… |
… | …10011010000000 |
3 | 101202111022102020 |
4 | 21030322122000 |
5 | 304010124104 |
6 | 23152521440 |
7 | 3553131120 |
oct | 1114723200 |
9 | 352438366 |
10 | 154379904 |
11 | 7a1639a8 |
12 | 43850280 |
13 | 25ca3673 |
14 | 16708c80 |
15 | d8472d9 |
hex | 933a680 |
154379904 has 128 divisors (see below), whose sum is σ = 475238400. Its totient is φ = 43490304.
The previous prime is 154379893. The next prime is 154379909. The reversal of 154379904 is 409973451.
154379904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (154379909) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211989 + ... + 212715.
It is an arithmetic number, because the mean of its divisors is an integer number (3712800).
Almost surely, 2154379904 is an apocalyptic number.
154379904 is a gapful number since it is divisible by the number (14) 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 154379904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237619200).
154379904 is an abundant number, since it is smaller than the sum of its proper divisors (320858496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154379904 is an equidigital number, since it uses as much as digits as its factorization.
154379904 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 830 (or 818 counting only the distinct ones).
The product of its (nonzero) digits is 136080, while the sum is 42.
The square root of 154379904 is about 12424.9709858816. The cubic root of 154379904 is about 536.4512424903.
The spelling of 154379904 in words is "one hundred fifty-four million, three hundred seventy-nine thousand, nine hundred four".
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