Base | Representation |
---|---|
bin | 10010011101001… |
… | …00101010000000 |
3 | 101210022102101202 |
4 | 21032210222000 |
5 | 304113040404 |
6 | 23210120332 |
7 | 3556622663 |
oct | 1116445200 |
9 | 353272352 |
10 | 154815104 |
11 | 7a430974 |
12 | 43a200a8 |
13 | 260c6792 |
14 | 167bd6da |
15 | d8d121e |
hex | 93a4a80 |
154815104 has 64 divisors (see below), whose sum is σ = 320971560. Its totient is φ = 74317824.
The previous prime is 154815049. The next prime is 154815109. The reversal of 154815104 is 401518451.
154815104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 140375104 + 14440000 = 11848^2 + 3800^2 .
It is a tau number, because it is divible by the number of its divisors (64).
It is not an unprimeable number, because it can be changed into a prime (154815109) 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, 459224 + ... + 459560.
Almost surely, 2154815104 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 154815104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160485780).
154815104 is an abundant number, since it is smaller than the sum of its proper divisors (166156456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154815104 is an equidigital number, since it uses as much as digits as its factorization.
154815104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 485 (or 473 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 29.
The square root of 154815104 is about 12442.4717801569. The cubic root of 154815104 is about 536.9548584363.
The spelling of 154815104 in words is "one hundred fifty-four million, eight hundred fifteen thousand, one hundred four".
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