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42660502 = 221330251
BaseRepresentation
bin1010001010111…
…1001010010110
32222021101012121
42202233022112
541410114002
64122210154
71025415433
oct242571226
988241177
1042660502
1122098515
121235395a
138ab8801
145946b8a
153b2a237
hex28af296

42660502 has 4 divisors (see below), whose sum is σ = 63990756. Its totient is φ = 21330250.

The previous prime is 42660467. The next prime is 42660521. The reversal of 42660502 is 20506624.

42660502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10665124 + ... + 10665127.

It is an arithmetic number, because the mean of its divisors is an integer number (15997689).

Almost surely, 242660502 is an apocalyptic number.

42660502 is a deficient number, since it is larger than the sum of its proper divisors (21330254).

42660502 is a wasteful number, since it uses less digits than its factorization.

42660502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21330253.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42660502 is about 6531.5007463829. The cubic root of 42660502 is about 349.4153559203.

The spelling of 42660502 in words is "forty-two million, six hundred sixty thousand, five hundred two".

Divisors: 1 2 21330251 42660502