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230344445 = 597474937
BaseRepresentation
bin11011011101011…
…00011011111101
3121001102201011202
431232230123331
5432432010240
634505025245
75464616102
oct1556543375
9531381152
10230344445
11109029211
1265185225
133894ccb6
1422840aa9
1515350315
hexdbac6fd

230344445 has 8 divisors (see below), whose sum is σ = 279263544. Its totient is φ = 182375424.

The previous prime is 230344409. The next prime is 230344463. The reversal of 230344445 is 544443032.

It can be written as a sum of positive squares in 4 ways, for example, as 11363641 + 218980804 = 3371^2 + 14798^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 230344445 - 26 = 230344381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236984 + ... + 237953.

It is an arithmetic number, because the mean of its divisors is an integer number (34907943).

Almost surely, 2230344445 is an apocalyptic number.

It is an amenable number.

230344445 is a deficient number, since it is larger than the sum of its proper divisors (48919099).

230344445 is an equidigital number, since it uses as much as digits as its factorization.

230344445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475039.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 230344445 is about 15177.1026549866. The cubic root of 230344445 is about 612.9982684349.

Adding to 230344445 its reverse (544443032), we get a palindrome (774787477).

The spelling of 230344445 in words is "two hundred thirty million, three hundred forty-four thousand, four hundred forty-five".

Divisors: 1 5 97 485 474937 2374685 46068889 230344445