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234488913 = 378162971
BaseRepresentation
bin11011111101000…
…00010001010001
3121100020021022120
431332200101101
5440012121123
635133524453
75545060101
oct1576402121
9540207276
10234488913
111103a9a9a
1266643729
1339771549
14231dd201
15158bd2e3
hexdfa0451

234488913 has 4 divisors (see below), whose sum is σ = 312651888. Its totient is φ = 156325940.

The previous prime is 234488911. The next prime is 234488927. The reversal of 234488913 is 319884432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234488913 - 21 = 234488911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234488911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39081483 + ... + 39081488.

It is an arithmetic number, because the mean of its divisors is an integer number (78162972).

Almost surely, 2234488913 is an apocalyptic number.

It is an amenable number.

234488913 is a deficient number, since it is larger than the sum of its proper divisors (78162975).

234488913 is an equidigital number, since it uses as much as digits as its factorization.

234488913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78162974.

The product of its digits is 165888, while the sum is 42.

The square root of 234488913 is about 15313.0308234523. The cubic root of 234488913 is about 616.6528899122.

The spelling of 234488913 in words is "two hundred thirty-four million, four hundred eighty-eight thousand, nine hundred thirteen".

Divisors: 1 3 78162971 234488913