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230222129 = 435354003
BaseRepresentation
bin11011011100011…
…10100100110001
3121001012111101112
431232032210301
5432414102004
634502243105
75463566354
oct1556164461
9531174345
10230222129
11108a55325
1265126495
1338909417
142280c29b
1515328e6e
hexdb8e931

230222129 has 4 divisors (see below), whose sum is σ = 235576176. Its totient is φ = 224868084.

The previous prime is 230222119. The next prime is 230222149. The reversal of 230222129 is 921222032.

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 a de Polignac number, because none of the positive numbers 2k-230222129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230222119) 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, 2676959 + ... + 2677044.

It is an arithmetic number, because the mean of its divisors is an integer number (58894044).

Almost surely, 2230222129 is an apocalyptic number.

It is an amenable number.

230222129 is a deficient number, since it is larger than the sum of its proper divisors (5354047).

230222129 is an equidigital number, since it uses as much as digits as its factorization.

230222129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354046.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 230222129 is about 15173.0724970258. The cubic root of 230222129 is about 612.8897457804.

The spelling of 230222129 in words is "two hundred thirty million, two hundred twenty-two thousand, one hundred twenty-nine".

Divisors: 1 43 5354003 230222129