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74052471 = 324684157
BaseRepresentation
bin1000110100111…
…11001101110111
312011100020220010
410122133031313
5122424134341
611203111303
71556302263
oct432371567
9164306803
1074052471
1138889799
1220972533
131245a23c
149b990a3
15677b716
hex469f377

74052471 has 4 divisors (see below), whose sum is σ = 98736632. Its totient is φ = 49368312.

The previous prime is 74052449. The next prime is 74052499. The reversal of 74052471 is 17425047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17425047 = 35808349.

It is not a de Polignac number, because 74052471 - 25 = 74052439 is a prime.

It is a super-3 number, since 3×740524713 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74052271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12342076 + ... + 12342081.

It is an arithmetic number, because the mean of its divisors is an integer number (24684158).

Almost surely, 274052471 is an apocalyptic number.

74052471 is a deficient number, since it is larger than the sum of its proper divisors (24684161).

74052471 is a wasteful number, since it uses less digits than its factorization.

74052471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24684160.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 74052471 is about 8605.3745415293. The cubic root of 74052471 is about 419.9328520770.

The spelling of 74052471 in words is "seventy-four million, fifty-two thousand, four hundred seventy-one".

Divisors: 1 3 24684157 74052471