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234997845 = 3515666523
BaseRepresentation
bin11100000000111…
…00100001010101
3121101012010102220
432000130201111
5440124412340
635152452553
75552306625
oct1600344125
9541163386
10234997845
111107173a5
126684a159
13398bc0a4
14232d2885
151596ded0
hexe01c855

234997845 has 8 divisors (see below), whose sum is σ = 375996576. Its totient is φ = 125332176.

The previous prime is 234997843. The next prime is 234997849. The reversal of 234997845 is 548799432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 234997845 - 21 = 234997843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234997843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833247 + ... + 7833276.

It is an arithmetic number, because the mean of its divisors is an integer number (46999572).

Almost surely, 2234997845 is an apocalyptic number.

It is an amenable number.

234997845 is a deficient number, since it is larger than the sum of its proper divisors (140998731).

234997845 is a wasteful number, since it uses less digits than its factorization.

234997845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666531.

The product of its digits is 2177280, while the sum is 51.

The square root of 234997845 is about 15329.6394282449. The cubic root of 234997845 is about 617.0986929574.

The spelling of 234997845 in words is "two hundred thirty-four million, nine hundred ninety-seven thousand, eight hundred forty-five".

Divisors: 1 3 5 15 15666523 46999569 78332615 234997845