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42648146 = 253402341
BaseRepresentation
bin1010001010110…
…0001001010010
32222020202020222
42202230021102
541404220041
64122033042
71025334422
oct242541122
988222228
1042648146
112208a202
1212348782
138ab2cb8
145942482
153b2674b
hex28ac252

42648146 has 8 divisors (see below), whose sum is σ = 65179404. Its totient is φ = 20921680.

The previous prime is 42648143. The next prime is 42648169. The reversal of 42648146 is 64184624.

It can be written as a sum of positive squares in 2 ways, for example, as 42393121 + 255025 = 6511^2 + 505^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42648143) 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, 201065 + ... + 201276.

Almost surely, 242648146 is an apocalyptic number.

42648146 is a deficient number, since it is larger than the sum of its proper divisors (22531258).

42648146 is a wasteful number, since it uses less digits than its factorization.

42648146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402396.

The product of its digits is 36864, while the sum is 35.

The square root of 42648146 is about 6530.5548003213. The cubic root of 42648146 is about 349.3816182877.

The spelling of 42648146 in words is "forty-two million, six hundred forty-eight thousand, one hundred forty-six".

Divisors: 1 2 53 106 402341 804682 21324073 42648146