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52910471 = 291824499
BaseRepresentation
bin1100100111010…
…1100110000111
310200120010112002
43021311212013
5102021113341
65130015515
71211505635
oct311654607
9120503462
1052910471
1127959469
121587759b
13ac67093
147054355
1549a229b
hex3275987

52910471 has 4 divisors (see below), whose sum is σ = 54735000. Its totient is φ = 51085944.

The previous prime is 52910461. The next prime is 52910509. The reversal of 52910471 is 17401925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52910471 - 222 = 48716167 is a prime.

It is a super-3 number, since 3×529104713 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1824499 = 52910471 / (5 + 2 + 9 + 1 + 0 + 4 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52910401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912221 + ... + 912278.

It is an arithmetic number, because the mean of its divisors is an integer number (13683750).

Almost surely, 252910471 is an apocalyptic number.

52910471 is a deficient number, since it is larger than the sum of its proper divisors (1824529).

52910471 is a wasteful number, since it uses less digits than its factorization.

52910471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824528.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 52910471 is about 7273.9584134088. The cubic root of 52910471 is about 375.4169489784.

The spelling of 52910471 in words is "fifty-two million, nine hundred ten thousand, four hundred seventy-one".

Divisors: 1 29 1824499 52910471