Search a number
-
+
231014056 = 23713317327
BaseRepresentation
bin11011100010011…
…11111010101000
3121002200201201011
431301033322220
5433114422211
634531233304
75503405240
oct1561177250
9532621634
10231014056
11109446309
1265448834
1338b25a10
1422976b20
1515433921
hexdc4fea8

231014056 has 32 divisors (see below), whose sum is σ = 533111040. Its totient is φ = 91389888.

The previous prime is 231014053. The next prime is 231014081. The reversal of 231014056 is 650410132.

It is a super-2 number, since 2×2310140562 = 106734988139142272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231014053) 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, 157936 + ... + 159391.

It is an arithmetic number, because the mean of its divisors is an integer number (16659720).

Almost surely, 2231014056 is an apocalyptic number.

231014056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

231014056 is an abundant number, since it is smaller than the sum of its proper divisors (302096984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231014056 is a wasteful number, since it uses less digits than its factorization.

231014056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317353 (or 317349 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 231014056 is about 15199.1465549879. The cubic root of 231014056 is about 613.5916888362.

Adding to 231014056 its reverse (650410132), we get a palindrome (881424188).

The spelling of 231014056 in words is "two hundred thirty-one million, fourteen thousand, fifty-six".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 317327 634654 1269308 2221289 2538616 4125251 4442578 8250502 8885156 16501004 17770312 28876757 33002008 57753514 115507028 231014056