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42514890 = 23511128833
BaseRepresentation
bin1010001000101…
…1100111001010
32221222222110120
42202023213022
541340434030
64115124110
71024241055
oct242134712
987888416
1042514890
1121aa9080
12122a3636
138a67452
145909a9c
153aec010
hex288b9ca

42514890 has 32 divisors (see below), whose sum is σ = 111312576. Its totient is φ = 10306560.

The previous prime is 42514889. The next prime is 42514903. The reversal of 42514890 is 9841524.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64087 + ... + 64746.

It is an arithmetic number, because the mean of its divisors is an integer number (3478518).

Almost surely, 242514890 is an apocalyptic number.

42514890 is an abundant number, since it is smaller than the sum of its proper divisors (68797686).

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

42514890 is a wasteful number, since it uses less digits than its factorization.

42514890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128854.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 42514890 is about 6520.3443160618. The cubic root of 42514890 is about 349.0173525798.

The spelling of 42514890 in words is "forty-two million, five hundred fourteen thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 128833 257666 386499 644165 772998 1288330 1417163 1932495 2834326 3864990 4251489 7085815 8502978 14171630 21257445 42514890