Search a number
-
+
390223341 = 3243358149
BaseRepresentation
bin10111010000100…
…101010111101101
31000012021101210100
4113100211113231
51244344121331
6102415501313
712445562244
oct2720452755
91005241710
10390223341
111902a8632
12aa827839
1362aca5b1
1439b7b95b
15243d1ae6
hex174255ed

390223341 has 6 divisors (see below), whose sum is σ = 563655950. Its totient is φ = 260148888.

The previous prime is 390223331. The next prime is 390223429. The reversal of 390223341 is 143322093.

It is a happy number.

390223341 is a `hidden beast` number, since 390 + 2 + 233 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 359254116 + 30969225 = 18954^2 + 5565^2 .

It is not a de Polignac number, because 390223341 - 26 = 390223277 is a prime.

It is a super-2 number, since 2×3902233412 = 304548511722404562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390223331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21679066 + ... + 21679083.

Almost surely, 2390223341 is an apocalyptic number.

It is an amenable number.

390223341 is a deficient number, since it is larger than the sum of its proper divisors (173432609).

390223341 is a wasteful number, since it uses less digits than its factorization.

390223341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43358155 (or 43358152 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 390223341 is about 19754.0715043760. The cubic root of 390223341 is about 730.7537975793.

The spelling of 390223341 in words is "three hundred ninety million, two hundred twenty-three thousand, three hundred forty-one".

Divisors: 1 3 9 43358149 130074447 390223341