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431022423 = 31311051857
BaseRepresentation
bin11001101100001…
…110000101010111
31010001001012121110
4121230032011113
51340320204143
6110434150103
713452426066
oct3154160527
91101035543
10431022423
11201334587
12100422333
136b3b3a70
144135c1dd
1527c90533
hex19b0e157

431022423 has 8 divisors (see below), whose sum is σ = 618904048. Its totient is φ = 265244544.

The previous prime is 431022377. The next prime is 431022439. The reversal of 431022423 is 324220134.

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

It is not a de Polignac number, because 431022423 - 224 = 414245207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431022423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5525890 + ... + 5525967.

It is an arithmetic number, because the mean of its divisors is an integer number (77363006).

Almost surely, 2431022423 is an apocalyptic number.

431022423 is a deficient number, since it is larger than the sum of its proper divisors (187881625).

431022423 is a wasteful number, since it uses less digits than its factorization.

431022423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051873.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 431022423 is about 20761.0795239554. The cubic root of 431022423 is about 755.3819817598.

Adding to 431022423 its reverse (324220134), we get a palindrome (755242557).

The spelling of 431022423 in words is "four hundred thirty-one million, twenty-two thousand, four hundred twenty-three".

Divisors: 1 3 13 39 11051857 33155571 143674141 431022423