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42052446 = 234259583
BaseRepresentation
bin1010000001101…
…0101101011110
32221010111010000
42200122231132
541231134241
64101155130
71020303612
oct240325536
987114100
1042052446
1121812697
12120bbaa6
138934b07
145829342
153a59eb6
hex281ab5e

42052446 has 20 divisors (see below), whose sum is σ = 94228992. Its totient is φ = 14017428.

The previous prime is 42052403. The next prime is 42052447. The reversal of 42052446 is 64425024.

42052446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052447) 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 9 ways as a sum of consecutive naturals, for example, 129630 + ... + 129953.

Almost surely, 242052446 is an apocalyptic number.

42052446 is an abundant number, since it is smaller than the sum of its proper divisors (52176546).

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

42052446 is a wasteful number, since it uses less digits than its factorization.

42052446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259597 (or 259588 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 42052446 is about 6484.7857327748. The cubic root of 42052446 is about 347.7472897778.

The spelling of 42052446 in words is "forty-two million, fifty-two thousand, four hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 259583 519166 778749 1557498 2336247 4672494 7008741 14017482 21026223 42052446