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42453244 = 2212918221
BaseRepresentation
bin1010000111110…
…0100011111100
32221212211220101
42201330203330
541332000434
64113530444
71023563251
oct241744374
987784811
1042453244
1121a66829
1212273a24
138a45382
1458d1428
153ad8b14
hex287c8fc

42453244 has 12 divisors (see below), whose sum is σ = 74359768. Its totient is φ = 21207600.

The previous prime is 42453227. The next prime is 42453247. The reversal of 42453244 is 44235424.

It is a super-2 number, since 2×424532442 = 3604555852247072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42453247) 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, 1054 + ... + 9274.

Almost surely, 242453244 is an apocalyptic number.

It is an amenable number.

42453244 is a deficient number, since it is larger than the sum of its proper divisors (31906524).

42453244 is a wasteful number, since it uses less digits than its factorization.

42453244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9516 (or 9514 counting only the distinct ones).

The product of its digits is 15360, while the sum is 28.

The square root of 42453244 is about 6515.6153968754. The cubic root of 42453244 is about 348.8485808768.

Adding to 42453244 its reverse (44235424), we get a palindrome (86688668).

The spelling of 42453244 in words is "forty-two million, four hundred fifty-three thousand, two hundred forty-four".

Divisors: 1 2 4 1291 2582 5164 8221 16442 32884 10613311 21226622 42453244