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42955471 = 1310730881
BaseRepresentation
bin1010001111011…
…1001011001111
32222211100211101
42203313023033
541444033341
64132403531
71031054416
oct243671317
988740741
1042955471
112227a099
12124765a7
138b8cb50
1459c247d
153b87831
hex28f72cf

42955471 has 8 divisors (see below), whose sum is σ = 46693584. Its totient is φ = 39279360.

The previous prime is 42955469. The next prime is 42955489. The reversal of 42955471 is 17455924.

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

It is a cyclic number.

It is not a de Polignac number, because 42955471 - 21 = 42955469 is a prime.

It is a super-3 number, since 3×429554713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42955471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42955441) 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, 14050 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (5836698).

Almost surely, 242955471 is an apocalyptic number.

42955471 is a deficient number, since it is larger than the sum of its proper divisors (3738113).

42955471 is a wasteful number, since it uses less digits than its factorization.

42955471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31001.

The product of its digits is 50400, while the sum is 37.

The square root of 42955471 is about 6554.0423404186. The cubic root of 42955471 is about 350.2188318579.

The spelling of 42955471 in words is "forty-two million, nine hundred fifty-five thousand, four hundred seventy-one".

Divisors: 1 13 107 1391 30881 401453 3304267 42955471