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10231442 = 213393517
BaseRepresentation
bin100111000001…
…111010010010
3201020210220022
4213001322102
510104401232
61003143442
7152652164
oct47017222
921223808
1010231442
115859041
123514b82
132173010
141504934
15d71812
hex9c1e92

10231442 has 8 divisors (see below), whose sum is σ = 16527756. Its totient is φ = 4722192.

The previous prime is 10231439. The next prime is 10231453. The reversal of 10231442 is 24413201.

It can be written as a sum of positive squares in 2 ways, for example, as 8934121 + 1297321 = 2989^2 + 1139^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 10231442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196733 + ... + 196784.

Almost surely, 210231442 is an apocalyptic number.

10231442 is a deficient number, since it is larger than the sum of its proper divisors (6296314).

10231442 is a wasteful number, since it uses less digits than its factorization.

10231442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393532.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10231442 is about 3198.6625329972. The cubic root of 10231442 is about 217.0928977120.

Adding to 10231442 its reverse (24413201), we get a palindrome (34644643).

The spelling of 10231442 in words is "ten million, two hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 13 26 393517 787034 5115721 10231442