Base | Representation |
---|---|
bin | 111001110000… |
… | …110010111000 |
3 | 1001111022000111 |
4 | 321300302320 |
5 | 12334021242 |
6 | 1300314104 |
7 | 242463661 |
oct | 71606270 |
9 | 31438014 |
10 | 15142072 |
11 | 8602510 |
12 | 50a2934 |
13 | 31a220a |
14 | 2022368 |
15 | 14e1817 |
hex | e70cb8 |
15142072 has 16 divisors (see below), whose sum is σ = 30972600. Its totient is φ = 6882720.
The previous prime is 15142051. The next prime is 15142093. The reversal of 15142072 is 27024151.
It is a happy number.
15142072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (15142051) and next prime (15142093).
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85947 + ... + 86122.
Almost surely, 215142072 is an apocalyptic number.
It is an amenable number.
15142072 is an abundant number, since it is smaller than the sum of its proper divisors (15830528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15142072 is a wasteful number, since it uses less digits than its factorization.
15142072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 172086 (or 172082 counting only the distinct ones).
The product of its (nonzero) digits is 560, while the sum is 22.
The square root of 15142072 is about 3891.2815369747. The cubic root of 15142072 is about 247.3973835729.
It can be divided in two parts, 15 and 142072, that multiplied together give a triangular number (2131080 = T2064).
The spelling of 15142072 in words is "fifteen million, one hundred forty-two thousand, seventy-two".
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