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235245217 = 4353109947
BaseRepresentation
bin11100000010110…
…00111010100001
3121101122200202211
432001120322201
5440210321332
635202042121
75554360054
oct1601307241
9541580684
10235245217
11110876239
1266949341
133997786c
1423358a9b
15159bc447
hexe058ea1

235245217 has 16 divisors (see below), whose sum is σ = 247769280. Its totient is φ = 223134912.

The previous prime is 235245203. The next prime is 235245221. The reversal of 235245217 is 712542532.

It is a de Polignac number, because none of the positive numbers 2k-235245217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235245247) 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, 247938 + ... + 248884.

It is an arithmetic number, because the mean of its divisors is an integer number (15485580).

Almost surely, 2235245217 is an apocalyptic number.

It is an amenable number.

235245217 is a deficient number, since it is larger than the sum of its proper divisors (12524063).

235245217 is a wasteful number, since it uses less digits than its factorization.

235245217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 16800, while the sum is 31.

The square root of 235245217 is about 15337.7057280416. The cubic root of 235245217 is about 617.3151479997.

Adding to 235245217 its reverse (712542532), we get a palindrome (947787749).

The spelling of 235245217 in words is "two hundred thirty-five million, two hundred forty-five thousand, two hundred seventeen".

Divisors: 1 43 53 109 947 2279 4687 5777 40721 50191 103223 248411 2158213 4438589 5470819 235245217