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42298390 = 257357943
BaseRepresentation
bin1010000101011…
…0110000010110
32221120222111001
42201112300112
541312022030
64110333514
71022346631
oct241266026
987528431
1042298390
1121970452
12121ba29a
1389bca44
145890c18
153aa7cca
hex2856c16

42298390 has 16 divisors (see below), whose sum is σ = 77181408. Its totient is φ = 16687296.

The previous prime is 42298387. The next prime is 42298393. The reversal of 42298390 is 9389224.

It is an interprime number because it is at equal distance from previous prime (42298387) and next prime (42298393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42298393) by changing a digit.

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, 28242 + ... + 29701.

It is an arithmetic number, because the mean of its divisors is an integer number (4823838).

Almost surely, 242298390 is an apocalyptic number.

42298390 is a deficient number, since it is larger than the sum of its proper divisors (34883018).

42298390 is a wasteful number, since it uses less digits than its factorization.

42298390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58023.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 42298390 is about 6503.7212424888. The cubic root of 42298390 is about 348.4239065058.

The spelling of 42298390 in words is "forty-two million, two hundred ninety-eight thousand, three hundred ninety".

Divisors: 1 2 5 10 73 146 365 730 57943 115886 289715 579430 4229839 8459678 21149195 42298390