Search a number
-
+
49379690 = 2523321193
BaseRepresentation
bin1011110001011…
…1100101101010
310102220202012102
42330113211222
5100120122230
64522213402
71136502053
oct274274552
9112822172
1049379690
1125967768
1214654262
13a2cbc69
1467b572a
154506045
hex2f1796a

49379690 has 16 divisors (see below), whose sum is σ = 89269128. Its totient is φ = 19666176.

The previous prime is 49379677. The next prime is 49379699. The reversal of 49379690 is 9697394.

It can be written as a sum of positive squares in 4 ways, for example, as 17986081 + 31393609 = 4241^2 + 5603^2 .

It is a super-2 number, since 2×493796902 = 4876707568992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49379699) 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, 8267 + ... + 12926.

Almost surely, 249379690 is an apocalyptic number.

49379690 is a deficient number, since it is larger than the sum of its proper divisors (39889438).

49379690 is a wasteful number, since it uses less digits than its factorization.

49379690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21433.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 49379690 is about 7027.0683787765. The cubic root of 49379690 is about 366.8733114335.

The spelling of 49379690 in words is "forty-nine million, three hundred seventy-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 233 466 1165 2330 21193 42386 105965 211930 4937969 9875938 24689845 49379690