Search a number
-
+
398249049 = 311531092089
BaseRepresentation
bin10111101111001…
…100110001011001
31000202101010222210
4113233030301121
51303422432144
6103303505333
712604026642
oct2757146131
91022333883
10398249049
1119488a450
12b1458249
136467a633
143ac6a6c9
1524e69ab9
hex17bccc59

398249049 has 32 divisors (see below), whose sum is σ = 595900800. Its totient is φ = 234524160.

The previous prime is 398249041. The next prime is 398249057. The reversal of 398249049 is 940942893.

It is an interprime number because it is at equal distance from previous prime (398249041) and next prime (398249057).

It is not a de Polignac number, because 398249049 - 23 = 398249041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398248989 and 398249007.

It is not an unprimeable number, because it can be changed into a prime (398249041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189597 + ... + 191685.

It is an arithmetic number, because the mean of its divisors is an integer number (18621900).

Almost surely, 2398249049 is an apocalyptic number.

It is an amenable number.

398249049 is a deficient number, since it is larger than the sum of its proper divisors (197651751).

398249049 is a wasteful number, since it uses less digits than its factorization.

398249049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

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

The square root of 398249049 is about 19956.1782162818. The cubic root of 398249049 is about 735.7296340998.

The spelling of 398249049 in words is "three hundred ninety-eight million, two hundred forty-nine thousand, forty-nine".

Divisors: 1 3 11 33 53 109 159 327 583 1199 1749 2089 3597 5777 6267 17331 22979 63547 68937 110717 190641 227701 332151 683103 1217887 2504711 3653661 7514133 12068153 36204459 132749683 398249049