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42552471 = 3136911579
BaseRepresentation
bin1010001001010…
…0110010010111
32222001220000110
42202110302113
541343134341
64120014103
71024455453
oct242246227
988056013
1042552471
1122024335
1212301333
138a7b5a0
145919663
153b08216
hex2894c97

42552471 has 16 divisors (see below), whose sum is σ = 61228160. Its totient is φ = 26131680.

The previous prime is 42552469. The next prime is 42552473. The reversal of 42552471 is 17425524.

It is an interprime number because it is at equal distance from previous prime (42552469) and next prime (42552473).

It is not a de Polignac number, because 42552471 - 21 = 42552469 is a prime.

It is a super-3 number, since 3×425524713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42552473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26160 + ... + 27738.

It is an arithmetic number, because the mean of its divisors is an integer number (3826760).

Almost surely, 242552471 is an apocalyptic number.

42552471 is a deficient number, since it is larger than the sum of its proper divisors (18675689).

42552471 is a wasteful number, since it uses less digits than its factorization.

42552471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its digits is 11200, while the sum is 30.

The square root of 42552471 is about 6523.2255058368. The cubic root of 42552471 is about 349.1201601552.

Adding to 42552471 its reverse (17425524), we get a palindrome (59977995).

The spelling of 42552471 in words is "forty-two million, five hundred fifty-two thousand, four hundred seventy-one".

Divisors: 1 3 13 39 691 1579 2073 4737 8983 20527 26949 61581 1091089 3273267 14184157 42552471