Base | Representation |
---|---|
bin | 10010100111110… |
… | …11110001001000 |
3 | 101212221211020000 |
4 | 21103323301020 |
5 | 304443023423 |
6 | 23300203000 |
7 | 3604565214 |
oct | 1123736110 |
9 | 355854200 |
10 | 156220488 |
11 | 80200846 |
12 | 44399460 |
13 | 26499378 |
14 | 16a67944 |
15 | daac843 |
hex | 94fbc48 |
156220488 has 60 divisors (see below), whose sum is σ = 438454995. Its totient is φ = 51967440.
The previous prime is 156220487. The next prime is 156220499. The reversal of 156220488 is 884022651.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
156220488 is a `hidden beast` number, since 156 + 2 + 20 + 488 = 666.
156220488 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 78110244 + 78110244 = 8838^2 + 8838^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=8838.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (156220487) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 317923 + ... + 318413.
Almost surely, 2156220488 is an apocalyptic number.
156220488 is a gapful number since it is divisible by the number (18) 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 156220488
156220488 is an abundant number, since it is smaller than the sum of its proper divisors (282234507).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
156220488 is an frugal number, since it uses more digits than its factorization.
156220488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1000 (or 496 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 156220488 is about 12498.8194642534. The cubic root of 156220488 is about 538.5747601453.
The spelling of 156220488 in words is "one hundred fifty-six million, two hundred twenty thousand, four hundred eighty-eight".
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