Base | Representation |
---|---|
bin | 10110101100111… |
… | …00000011111000 |
3 | 111021022220212210 |
4 | 23112130003320 |
5 | 342222301410 |
6 | 30521335120 |
7 | 4501432551 |
oct | 1326340370 |
9 | 437286783 |
10 | 190431480 |
11 | 98547a98 |
12 | 539374a0 |
13 | 305b6c65 |
14 | 1b411328 |
15 | 11ab9220 |
hex | b59c0f8 |
190431480 has 64 divisors (see below), whose sum is σ = 574659360. Its totient is φ = 50482688.
The previous prime is 190431473. The next prime is 190431499. The reversal of 190431480 is 84134091.
It is a happy number.
190431480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16174 + ... + 25346.
Almost surely, 2190431480 is an apocalyptic number.
190431480 is a gapful number since it is divisible by the number (10) 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 190431480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287329680).
190431480 is an abundant number, since it is smaller than the sum of its proper divisors (384227880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
190431480 is a wasteful number, since it uses less digits than its factorization.
190431480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9360 (or 9356 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 190431480 is about 13799.6913008951. The cubic root of 190431480 is about 575.3245603079.
The spelling of 190431480 in words is "one hundred ninety million, four hundred thirty-one thousand, four hundred eighty".
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