Search a number
-
+
60669849 = 320223283
BaseRepresentation
bin1110011101101…
…1111110011001
311020011100101110
43213123332121
5111012413344
610004210533
71334454012
oct347337631
9136140343
1060669849
1131279179
1218399a49
13c752b26
1480b4009
1554d63b9
hex39dbf99

60669849 has 4 divisors (see below), whose sum is σ = 80893136. Its totient is φ = 40446564.

The previous prime is 60669841. The next prime is 60669853. The reversal of 60669849 is 94896606.

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.

It is not a de Polignac number, because 60669849 - 23 = 60669841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60669798 and 60669807.

It is not an unprimeable number, because it can be changed into a prime (60669841) 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, 10111639 + ... + 10111644.

It is an arithmetic number, because the mean of its divisors is an integer number (20223284).

Almost surely, 260669849 is an apocalyptic number.

It is an amenable number.

60669849 is a deficient number, since it is larger than the sum of its proper divisors (20223287).

60669849 is a wasteful number, since it uses less digits than its factorization.

60669849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20223286.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 60669849 is about 7789.0852479608. The cubic root of 60669849 is about 392.9382482338.

The spelling of 60669849 in words is "sixty million, six hundred sixty-nine thousand, eight hundred forty-nine".

Divisors: 1 3 20223283 60669849