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42890260 = 2257306359
BaseRepresentation
bin1010001110011…
…1010000010100
32222201001101011
42203213100110
541434442020
64131142004
71030363330
oct243472024
988631334
1042890260
11222350a6
1212444904
138b6926a
1459a67c0
153b7335a
hex28e7414

42890260 has 24 divisors (see below), whose sum is σ = 102936960. Its totient is φ = 14705184.

The previous prime is 42890233. The next prime is 42890291. The reversal of 42890260 is 6209824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153040 + ... + 153319.

It is an arithmetic number, because the mean of its divisors is an integer number (4289040).

Almost surely, 242890260 is an apocalyptic number.

It is an amenable number.

42890260 is an abundant number, since it is smaller than the sum of its proper divisors (60046700).

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

42890260 is a wasteful number, since it uses less digits than its factorization.

42890260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306375 (or 306373 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 42890260 is about 6549.0655822033. The cubic root of 42890260 is about 350.0415188841.

The spelling of 42890260 in words is "forty-two million, eight hundred ninety thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 306359 612718 1225436 1531795 2144513 3063590 4289026 6127180 8578052 10722565 21445130 42890260