Base | Representation |
---|---|
bin | 1000011111010111000… |
… | …0111101101110011110 |
3 | 111221111001000011120111 |
4 | 2013311300331232132 |
5 | 4342203414040210 |
6 | 151001133240234 |
7 | 13352322345412 |
oct | 2076560755636 |
9 | 457431004514 |
10 | 145857174430 |
11 | 56948632a70 |
12 | 2432733307a |
13 | 109a61a1596 |
14 | 70b949cd42 |
15 | 3bda04588a |
hex | 21f5c3db9e |
145857174430 has 64 divisors (see below), whose sum is σ = 304234444800. Its totient is φ = 49758323200.
The previous prime is 145857174409. The next prime is 145857174461. The reversal of 145857174430 is 34471758541.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456171 + ... + 706969.
It is an arithmetic number, because the mean of its divisors is an integer number (4753663200).
Almost surely, 2145857174430 is an apocalyptic number.
145857174430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145857174430 is an abundant number, since it is smaller than the sum of its proper divisors (158377270370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145857174430 is a wasteful number, since it uses less digits than its factorization.
145857174430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 251145.
The product of its (nonzero) digits is 1881600, while the sum is 49.
The spelling of 145857174430 in words is "one hundred forty-five billion, eight hundred fifty-seven million, one hundred seventy-four thousand, four hundred thirty".
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