Base | Representation |
---|---|
bin | 11001000010101… |
… | …001011001110111 |
3 | 1002021112112011111 |
4 | 121002221121313 |
5 | 1330022434104 |
6 | 105404415451 |
7 | 13260666061 |
oct | 3102513167 |
9 | 1067475144 |
10 | 420124279 |
11 | 1a6170653 |
12 | b8847587 |
13 | 69069463 |
14 | 3db22731 |
15 | 26d3b404 |
hex | 190a9677 |
420124279 has 8 divisors (see below), whose sum is σ = 439526880. Its totient is φ = 400816416.
The previous prime is 420124267. The next prime is 420124283. The reversal of 420124279 is 972421024.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 420124279 - 27 = 420124151 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 420124279.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (420124249) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14532 + ... + 32425.
It is an arithmetic number, because the mean of its divisors is an integer number (54940860).
Almost surely, 2420124279 is an apocalyptic number.
420124279 is a deficient number, since it is larger than the sum of its proper divisors (19402601).
420124279 is a wasteful number, since it uses less digits than its factorization.
420124279 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47369.
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 420124279 is about 20496.9334047803. The cubic root of 420124279 is about 748.9610972764.
The spelling of 420124279 in words is "four hundred twenty million, one hundred twenty-four thousand, two hundred seventy-nine".
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