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42202501 = 1123111251
BaseRepresentation
bin1010000011111…
…1010110000101
32221102002221121
42200333112011
541300440001
64104313541
71021500235
oct240772605
987362847
1042202501
1121905400
12121728b1
1389881c3
145867cc5
153a896a1
hex283f585

42202501 has 12 divisors (see below), whose sum is σ = 47888512. Its totient is φ = 37125000.

The previous prime is 42202463. The next prime is 42202513. The reversal of 42202501 is 10520224.

42202501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42202501 - 211 = 42200453 is a prime.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42202561) 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 11 ways as a sum of consecutive naturals, for example, 1875 + ... + 9376.

Almost surely, 242202501 is an apocalyptic number.

42202501 is the 3751-st octagonal number.

It is an amenable number.

42202501 is a deficient number, since it is larger than the sum of its proper divisors (5686011).

42202501 is a wasteful number, since it uses less digits than its factorization.

42202501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304 (or 11293 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42202501 is about 6496.3452032662. The cubic root of 42202501 is about 348.1604189493.

Adding to 42202501 its reverse (10520224), we get a palindrome (52722725).

The spelling of 42202501 in words is "forty-two million, two hundred two thousand, five hundred one".

Divisors: 1 11 31 121 341 3751 11251 123761 348781 1361371 3836591 42202501