Base | Representation |
---|---|
bin | 100100110011… |
… | …1101010011100 |
3 | 1100022111012202 |
4 | 1021213222130 |
5 | 14420031342 |
6 | 1525351032 |
7 | 323016140 |
oct | 111475234 |
9 | 40274182 |
10 | 19298972 |
11 | a991670 |
12 | 6568478 |
13 | 3cc9314 |
14 | 27c5220 |
15 | 1a63332 |
hex | 1267a9c |
19298972 has 24 divisors (see below), whose sum is σ = 42107520. Its totient is φ = 7518960.
The previous prime is 19298963. The next prime is 19298977. The reversal of 19298972 is 27989291.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19298977) 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, 31022 + ... + 31637.
It is an arithmetic number, because the mean of its divisors is an integer number (1754480).
Almost surely, 219298972 is an apocalyptic number.
It is an amenable number.
19298972 is an abundant number, since it is smaller than the sum of its proper divisors (22808548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19298972 is a wasteful number, since it uses less digits than its factorization.
19298972 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62681 (or 62679 counting only the distinct ones).
The product of its digits is 163296, while the sum is 47.
The square root of 19298972 is about 4393.0595261162. The cubic root of 19298972 is about 268.2324966930.
It can be divided in two parts, 1929 and 8972, that added together give a palindrome (10901).
The spelling of 19298972 in words is "nineteen million, two hundred ninety-eight thousand, nine hundred seventy-two".
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