Search a number
-
+
398055244 = 22195237569
BaseRepresentation
bin10111101110011…
…101011101001100
31000202000022010211
4113232131131030
51303400231434
6103255412204
712602261626
oct2756353514
91022008124
10398055244
11194767884
12b1384064
1364610362
143ac19c16
1524e2c464
hex17b9d74c

398055244 has 12 divisors (see below), whose sum is σ = 733259800. Its totient is φ = 188552448.

The previous prime is 398055239. The next prime is 398055271. The reversal of 398055244 is 442550893.

It is a junction number, because it is equal to n+sod(n) for n = 398055197 and 398055206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618709 + ... + 2618860.

Almost surely, 2398055244 is an apocalyptic number.

It is an amenable number.

398055244 is a deficient number, since it is larger than the sum of its proper divisors (335204556).

398055244 is a wasteful number, since it uses less digits than its factorization.

398055244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237592 (or 5237590 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 398055244 is about 19951.3218609695. The cubic root of 398055244 is about 735.6102689118.

The spelling of 398055244 in words is "three hundred ninety-eight million, fifty-five thousand, two hundred forty-four".

Divisors: 1 2 4 19 38 76 5237569 10475138 20950276 99513811 199027622 398055244