Base | Representation |
---|---|
bin | 100100111111… |
… | …0011010011000 |
3 | 1100111020000212 |
4 | 1021332122120 |
5 | 14431022102 |
6 | 1531350252 |
7 | 323554613 |
oct | 111763230 |
9 | 40436025 |
10 | 19392152 |
11 | aa4567a |
12 | 65b2388 |
13 | 402c860 |
14 | 280b17a |
15 | 1a80c52 |
hex | 127e698 |
19392152 has 32 divisors (see below), whose sum is σ = 39396000. Its totient is φ = 8895744.
The previous prime is 19392133. The next prime is 19392157. The reversal of 19392152 is 25129391.
It is a super-2 number, since 2×193921522 = 752111118382208, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19392157) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20228 + ... + 21164.
It is an arithmetic number, because the mean of its divisors is an integer number (1231125).
Almost surely, 219392152 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 19392152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19698000).
19392152 is an abundant number, since it is smaller than the sum of its proper divisors (20003848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19392152 is a wasteful number, since it uses less digits than its factorization.
19392152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1155 (or 1151 counting only the distinct ones).
The product of its digits is 4860, while the sum is 32.
The square root of 19392152 is about 4403.6521206835. The cubic root of 19392152 is about 268.6635004118.
The spelling of 19392152 in words is "nineteen million, three hundred ninety-two thousand, one hundred fifty-two".
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