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431144230 = 25114391151
BaseRepresentation
bin11001101100101…
…011110100100110
31010001021101200211
4121230223310212
51340333103410
6110440530034
713453444156
oct3154536446
91101241624
10431144230
11201408050
1210048091a
136b42733a
1441390766
1527cb668a
hex19b2bd26

431144230 has 32 divisors (see below), whose sum is σ = 866308608. Its totient is φ = 153132000.

The previous prime is 431144227. The next prime is 431144267. The reversal of 431144230 is 32441134.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40846 + ... + 50305.

It is an arithmetic number, because the mean of its divisors is an integer number (27072144).

Almost surely, 2431144230 is an apocalyptic number.

431144230 is an abundant number, since it is smaller than the sum of its proper divisors (435164378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431144230 is a wasteful number, since it uses less digits than its factorization.

431144230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91212.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 431144230 is about 20764.0128587901. The cubic root of 431144230 is about 755.4531320775.

Adding to 431144230 its reverse (32441134), we get a palindrome (463585364).

The spelling of 431144230 in words is "four hundred thirty-one million, one hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 2365 4730 91151 182302 455755 911510 1002661 2005322 3919493 5013305 7838986 10026610 19597465 39194930 43114423 86228846 215572115 431144230