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235418240 = 275367841
BaseRepresentation
bin11100000100000…
…11001010000000
3121101222111010002
432002003022000
5440231340430
635205455132
75556010361
oct1602031200
9541874102
10235418240
11110984232
1266a114a8
1339a08545
14233a1b68
1515a03845
hexe083280

235418240 has 32 divisors (see below), whose sum is σ = 562798260. Its totient is φ = 94167040.

The previous prime is 235418237. The next prime is 235418251. The reversal of 235418240 is 42814532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 223084096 + 12334144 = 14936^2 + 3512^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183281 + ... + 184560.

Almost surely, 2235418240 is an apocalyptic number.

235418240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235418240 is an abundant number, since it is smaller than the sum of its proper divisors (327380020).

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

235418240 is an equidigital number, since it uses as much as digits as its factorization.

235418240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367860 (or 367848 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 235418240 is about 15343.3451372248. The cubic root of 235418240 is about 617.4664561322.

The spelling of 235418240 in words is "two hundred thirty-five million, four hundred eighteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 367841 735682 1471364 1839205 2942728 3678410 5885456 7356820 11770912 14713640 23541824 29427280 47083648 58854560 117709120 235418240