Search a number
-
+
253213982 = 2742174289
BaseRepresentation
bin11110001011110…
…11110100011110
3122122110121021122
433011323310132
51004310321412
641043130542
76163166120
oct1705736436
9578417248
10253213982
1111aa2945a
1270973a52
13405c9578
14258b5210
151736b572
hexf17bd1e

253213982 has 16 divisors (see below), whose sum is σ = 434285280. Its totient is φ = 108469248.

The previous prime is 253213981. The next prime is 253214009. The reversal of 253213982 is 289312352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253213981) 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, 56894 + ... + 61182.

It is an arithmetic number, because the mean of its divisors is an integer number (27142830).

Almost surely, 2253213982 is an apocalyptic number.

253213982 is a deficient number, since it is larger than the sum of its proper divisors (181071298).

253213982 is a wasteful number, since it uses less digits than its factorization.

253213982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515.

The product of its digits is 25920, while the sum is 35.

The square root of 253213982 is about 15912.6987654514. The cubic root of 253213982 is about 632.6486140705.

The spelling of 253213982 in words is "two hundred fifty-three million, two hundred thirteen thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 4217 4289 8434 8578 29519 30023 59038 60046 18086713 36173426 126606991 253213982