Base | Representation |
---|---|
bin | 111010000010… |
… | …100101111000 |
3 | 1001122000000100 |
4 | 322002211320 |
5 | 12343334333 |
6 | 1302035400 |
7 | 243216336 |
oct | 72024570 |
9 | 31560010 |
10 | 15214968 |
11 | 865225a |
12 | 5118b60 |
13 | 31c9452 |
14 | 2040b56 |
15 | 1508213 |
hex | e82978 |
15214968 has 24 divisors (see below), whose sum is σ = 41207400. Its totient is φ = 5071632.
The previous prime is 15214967. The next prime is 15214987. The reversal of 15214968 is 86941251.
It is a tau number, because it is divible by the number of its divisors (24).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15214967) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105588 + ... + 105731.
It is an arithmetic number, because the mean of its divisors is an integer number (1716975).
Almost surely, 215214968 is an apocalyptic number.
15214968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
15214968 is an abundant number, since it is smaller than the sum of its proper divisors (25992432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15214968 is a wasteful number, since it uses less digits than its factorization.
15214968 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 211331 (or 211324 counting only the distinct ones).
The product of its digits is 17280, while the sum is 36.
The square root of 15214968 is about 3900.6368710763. The cubic root of 15214968 is about 247.7937497813.
It can be divided in two parts, 1521 and 4968, that multiplied together give a triangular number (7556328 = T3887).
The spelling of 15214968 in words is "fifteen million, two hundred fourteen thousand, nine hundred sixty-eight".
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