Search a number
-
+
235683081 = 3337235919
BaseRepresentation
bin11100000110000…
…11110100001001
3121102110221102000
432003003310021
5440313324311
635215301213
75561162454
oct1603036411
9542427360
10235683081
11111045207
1266b1a809
1339a9bc5a
142343049b
1515a57056
hexe0c3d09

235683081 has 16 divisors (see below), whose sum is σ = 358598400. Its totient is φ = 152874864.

The previous prime is 235683073. The next prime is 235683109. The reversal of 235683081 is 180386532.

It is not a de Polignac number, because 235683081 - 23 = 235683073 is a prime.

It is a super-2 number, since 2×2356830812 = 111093029339305122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (235683031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116961 + ... + 118958.

It is an arithmetic number, because the mean of its divisors is an integer number (22412400).

Almost surely, 2235683081 is an apocalyptic number.

It is an amenable number.

235683081 is a deficient number, since it is larger than the sum of its proper divisors (122915319).

235683081 is a wasteful number, since it uses less digits than its factorization.

235683081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235965 (or 235959 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 235683081 is about 15351.9731956514. The cubic root of 235683081 is about 617.6979153274.

The spelling of 235683081 in words is "two hundred thirty-five million, six hundred eighty-three thousand, eighty-one".

Divisors: 1 3 9 27 37 111 333 999 235919 707757 2123271 6369813 8729003 26187009 78561027 235683081