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20126494 = 243234029
BaseRepresentation
bin100110011000…
…1101100011110
31101212112100201
41030301230132
520123021434
61555214114
7333033553
oct114615436
941775321
1020126494
11103a7373
1268a733a
134228b8b
14295ca2a
151b78614
hex1331b1e

20126494 has 8 divisors (see below), whose sum is σ = 30891960. Its totient is φ = 9829176.

The previous prime is 20126489. The next prime is 20126497. The reversal of 20126494 is 49462102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116929 + ... + 117100.

It is an arithmetic number, because the mean of its divisors is an integer number (3861495).

Almost surely, 220126494 is an apocalyptic number.

20126494 is a deficient number, since it is larger than the sum of its proper divisors (10765466).

20126494 is a wasteful number, since it uses less digits than its factorization.

20126494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234074.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20126494 is about 4486.2561228713. The cubic root of 20126494 is about 272.0128219878.

Adding to 20126494 its reverse (49462102), we get a palindrome (69588596).

The spelling of 20126494 in words is "twenty million, one hundred twenty-six thousand, four hundred ninety-four".

Divisors: 1 2 43 86 234029 468058 10063247 20126494