Base | Representation |
---|---|
bin | 1000110110010… |
… | …00000011110001 |
3 | 12011122202101001 |
4 | 10123020003301 |
5 | 123000013021 |
6 | 11210442001 |
7 | 1560600100 |
oct | 433100361 |
9 | 164582331 |
10 | 74219761 |
11 | 38993450 |
12 | 20a33301 |
13 | 124b8425 |
14 | 9c00037 |
15 | 67b1091 |
hex | 46c80f1 |
74219761 has 12 divisors (see below), whose sum is σ = 94186800. Its totient is φ = 57833160.
The previous prime is 74219741. The next prime is 74219771. The reversal of 74219761 is 16791247.
It is not a de Polignac number, because 74219761 - 213 = 74211569 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 74219761.
It is not an unprimeable number, because it can be changed into a prime (74219741) 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 11 ways as a sum of consecutive naturals, for example, 68311 + ... + 69388.
It is an arithmetic number, because the mean of its divisors is an integer number (7848900).
Almost surely, 274219761 is an apocalyptic number.
It is an amenable number.
74219761 is a deficient number, since it is larger than the sum of its proper divisors (19967039).
74219761 is a wasteful number, since it uses less digits than its factorization.
74219761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 137724 (or 137717 counting only the distinct ones).
The product of its digits is 21168, while the sum is 37.
The square root of 74219761 is about 8615.0891463757. The cubic root of 74219761 is about 420.2488340277.
It can be divided in two parts, 742 and 19761, that added together give a triangular number (20503 = T202).
The spelling of 74219761 in words is "seventy-four million, two hundred nineteen thousand, seven hundred sixty-one".
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