Base | Representation |
---|---|
bin | 100100111101100… |
… | …010101001111001 |
3 | 1121012211222102211 |
4 | 210331202221321 |
5 | 2232222100010 |
6 | 141311055121 |
7 | 21236604115 |
oct | 4475425171 |
9 | 1535758384 |
10 | 620112505 |
11 | 299045781 |
12 | 1538114a1 |
13 | 9b61b29c |
14 | 5c500745 |
15 | 3969208a |
hex | 24f62a79 |
620112505 has 8 divisors (see below), whose sum is σ = 753100992. Its totient is φ = 490112688.
The previous prime is 620112487. The next prime is 620112511. The reversal of 620112505 is 505211026.
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 620112505 - 27 = 620112377 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746709 + ... + 747538.
It is an arithmetic number, because the mean of its divisors is an integer number (94137624).
Almost surely, 2620112505 is an apocalyptic number.
It is an amenable number.
620112505 is a deficient number, since it is larger than the sum of its proper divisors (132988487).
620112505 is a wasteful number, since it uses less digits than its factorization.
620112505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1494335.
The product of its (nonzero) digits is 600, while the sum is 22.
The square root of 620112505 is about 24902.0582482653. The cubic root of 620112505 is about 852.7534722126.
It can be divided in two parts, 62011 and 2505, that added together give a square (64516 = 2542).
The spelling of 620112505 in words is "six hundred twenty million, one hundred twelve thousand, five hundred five".
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