Base | Representation |
---|---|
bin | 10010010110110… |
… | …00010011000110 |
3 | 101201201220011220 |
4 | 21023120103012 |
5 | 303404244204 |
6 | 23140141210 |
7 | 3546535416 |
oct | 1113302306 |
9 | 351656156 |
10 | 153978054 |
11 | 79a09a9a |
12 | 43697806 |
13 | 25b92799 |
14 | 16642646 |
15 | d7b81d9 |
hex | 92d84c6 |
153978054 has 32 divisors (see below), whose sum is σ = 331720704. Its totient is φ = 47509440.
The previous prime is 153978037. The next prime is 153978059. The reversal of 153978054 is 450879351.
153978054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1539780542 = 47418482227253832, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 153977997 and 153978015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (153978059) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13719 + ... + 22274.
It is an arithmetic number, because the mean of its divisors is an integer number (10366272).
Almost surely, 2153978054 is an apocalyptic number.
153978054 is an abundant number, since it is smaller than the sum of its proper divisors (177742650).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
153978054 is a wasteful number, since it uses less digits than its factorization.
153978054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36052.
The product of its (nonzero) digits is 151200, while the sum is 42.
The square root of 153978054 is about 12408.7893849481. The cubic root of 153978054 is about 535.9853782118.
The spelling of 153978054 in words is "one hundred fifty-three million, nine hundred seventy-eight thousand, fifty-four".
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