Base | Representation |
---|---|
bin | 1000111000110… |
… | …11001000111101 |
3 | 12012022001011202 |
4 | 10130123020331 |
5 | 123041410221 |
6 | 11222025245 |
7 | 1563515162 |
oct | 434331075 |
9 | 165261152 |
10 | 74560061 |
11 | 390a6094 |
12 | 20b78225 |
13 | 125a72a4 |
14 | 9c8c069 |
15 | 682bd0b |
hex | 471b23d |
74560061 has 4 divisors (see below), whose sum is σ = 75256992. Its totient is φ = 73863132.
The previous prime is 74560051. The next prime is 74560063. The reversal of 74560061 is 16006547.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16006547 = 239 ⋅66973.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-74560061 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (74560063) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348305 + ... + 348518.
It is an arithmetic number, because the mean of its divisors is an integer number (18814248).
Almost surely, 274560061 is an apocalyptic number.
It is an amenable number.
74560061 is a deficient number, since it is larger than the sum of its proper divisors (696931).
74560061 is a wasteful number, since it uses less digits than its factorization.
74560061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 696930.
The product of its (nonzero) digits is 5040, while the sum is 29.
The square root of 74560061 is about 8634.8167901815. The cubic root of 74560061 is about 420.8901397115.
It can be divided in two parts, 745 and 60061, that added together give a palindrome (60806).
The spelling of 74560061 in words is "seventy-four million, five hundred sixty thousand, sixty-one".
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