Search a number
-
+
235244340 = 223251306913
BaseRepresentation
bin11100000010110…
…00101100110100
3121101122122120100
432001120230310
5440210304330
635202034100
75554354362
oct1601305464
9541578510
10235244340
11110875611
1266948930
1339977346
1423358632
15159bc060
hexe058b34

235244340 has 36 divisors (see below), whose sum is σ = 713575044. Its totient is φ = 62731776.

The previous prime is 235244309. The next prime is 235244341. The reversal of 235244340 is 43442532.

It can be written as a sum of positive squares in 2 ways, for example, as 46621584 + 188622756 = 6828^2 + 13734^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235244341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653277 + ... + 653636.

It is an arithmetic number, because the mean of its divisors is an integer number (19821529).

Almost surely, 2235244340 is an apocalyptic number.

235244340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235244340 is an abundant number, since it is smaller than the sum of its proper divisors (478330704).

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

235244340 is a wasteful number, since it uses less digits than its factorization.

235244340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306928 (or 1306923 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 235244340 is about 15337.6771383414. The cubic root of 235244340 is about 617.3143808767.

Adding to 235244340 its reverse (43442532), we get a palindrome (278686872).

The spelling of 235244340 in words is "two hundred thirty-five million, two hundred forty-four thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1306913 2613826 3920739 5227652 6534565 7841478 11762217 13069130 15682956 19603695 23524434 26138260 39207390 47048868 58811085 78414780 117622170 235244340