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234032357 = 1318002489
BaseRepresentation
bin11011111001100…
…00110011100101
3121022101002001002
431330300303211
5434403013412
635120043045
75541146036
oct1574606345
9538332032
10234032357
11110117a79
1266463485
13396417b0
1423120a8d
151582cdc2
hexdf30ce5

234032357 has 4 divisors (see below), whose sum is σ = 252034860. Its totient is φ = 216029856.

The previous prime is 234032341. The next prime is 234032371. The reversal of 234032357 is 753230432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 166693921 = 8206^2 + 12911^2 .

It is a cyclic number.

It is not a de Polignac number, because 234032357 - 24 = 234032341 is a prime.

It is a super-2 number, since 2×2340323572 = 109542288245950898, 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 (234032657) 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, 9001232 + ... + 9001257.

It is an arithmetic number, because the mean of its divisors is an integer number (63008715).

Almost surely, 2234032357 is an apocalyptic number.

It is an amenable number.

234032357 is a deficient number, since it is larger than the sum of its proper divisors (18002503).

234032357 is a wasteful number, since it uses less digits than its factorization.

234032357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18002502.

The product of its (nonzero) digits is 15120, while the sum is 29.

The square root of 234032357 is about 15298.1161258503. The cubic root of 234032357 is about 616.2524168283.

Adding to 234032357 its reverse (753230432), we get a palindrome (987262789).

The spelling of 234032357 in words is "two hundred thirty-four million, thirty-two thousand, three hundred fifty-seven".

Divisors: 1 13 18002489 234032357