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42237471 = 319372949
BaseRepresentation
bin1010000100011…
…1111000011111
32221110212220210
42201013320133
541303044341
64105143503
71022004213
oct241077037
987425823
1042237471
1121929701
121218ab93
13899b0b3
145876943
153a94c16
hex2847e1f

42237471 has 8 divisors (see below), whose sum is σ = 56609200. Its totient is φ = 28012032.

The previous prime is 42237463. The next prime is 42237521. The reversal of 42237471 is 17473224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42237471 - 23 = 42237463 is a prime.

It is a super-3 number, since 3×422374713 (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 (42235471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35896 + ... + 37053.

It is an arithmetic number, because the mean of its divisors is an integer number (7076150).

Almost surely, 242237471 is an apocalyptic number.

42237471 is a deficient number, since it is larger than the sum of its proper divisors (14371729).

42237471 is a wasteful number, since it uses less digits than its factorization.

42237471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73145.

The product of its digits is 9408, while the sum is 30.

The square root of 42237471 is about 6499.0361593085. The cubic root of 42237471 is about 348.2565570788.

The spelling of 42237471 in words is "forty-two million, two hundred thirty-seven thousand, four hundred seventy-one".

Divisors: 1 3 193 579 72949 218847 14079157 42237471