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42618051 = 327798563
BaseRepresentation
bin1010001010010…
…0110011000011
32222012012222100
42202210303003
541402234201
64121241443
71025150610
oct242446303
988165870
1042618051
1122069633
1212333283
138aa23a8
145935507
153b1c886
hex28a4cc3

42618051 has 24 divisors (see below), whose sum is σ = 71252480. Its totient is φ = 24042096.

The previous prime is 42618029. The next prime is 42618071. The reversal of 42618051 is 15081624.

42618051 is a `hidden beast` number, since 42 + 618 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 42618051 - 26 = 42617987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42618071) 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 23 ways as a sum of consecutive naturals, for example, 696 + ... + 9258.

Almost surely, 242618051 is an apocalyptic number.

42618051 is a deficient number, since it is larger than the sum of its proper divisors (28634429).

42618051 is a wasteful number, since it uses less digits than its factorization.

42618051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8655 (or 8652 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 42618051 is about 6528.2502249837. The cubic root of 42618051 is about 349.2994176529.

Adding to 42618051 its reverse (15081624), we get a palindrome (57699675).

The spelling of 42618051 in words is "forty-two million, six hundred eighteen thousand, fifty-one".

Divisors: 1 3 7 9 21 63 79 237 553 711 1659 4977 8563 25689 59941 77067 179823 539469 676477 2029431 4735339 6088293 14206017 42618051