Search a number
-
+
234116381 = 435444567
BaseRepresentation
bin11011111010001…
…01010100011101
3121022112100022002
431331011110131
5434413211011
635121532045
75541646022
oct1575052435
9538470262
10234116381
11110175114
12664a4025
1339670b05
1423143549
1515847c3b
hexdf4551d

234116381 has 4 divisors (see below), whose sum is σ = 239560992. Its totient is φ = 228671772.

The previous prime is 234116339. The next prime is 234116383. The reversal of 234116381 is 183611432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234116381 - 218 = 233854237 is a prime.

It is a super-2 number, since 2×2341163812 = 109620959705074322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234116383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2722241 + ... + 2722326.

It is an arithmetic number, because the mean of its divisors is an integer number (59890248).

Almost surely, 2234116381 is an apocalyptic number.

It is an amenable number.

234116381 is a deficient number, since it is larger than the sum of its proper divisors (5444611).

234116381 is an equidigital number, since it uses as much as digits as its factorization.

234116381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444610.

The product of its digits is 3456, while the sum is 29.

The square root of 234116381 is about 15300.8620998949. The cubic root of 234116381 is about 616.3261584797.

It can be divided in two parts, 23411 and 6381, that added together give a palindrome (29792).

The spelling of 234116381 in words is "two hundred thirty-four million, one hundred sixteen thousand, three hundred eighty-one".

Divisors: 1 43 5444567 234116381