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52678641 = 331566437
BaseRepresentation
bin1100100011110…
…0111111110001
310200010100111210
43020330333301
5101441204031
65121030333
71206522021
oct310747761
9120110453
1052678641
1127810274
12157853a9
13abb56c2
146dd3a81
154958746
hex323cff1

52678641 has 8 divisors (see below), whose sum is σ = 72504064. Its totient is φ = 33986160.

The previous prime is 52678607. The next prime is 52678643. The reversal of 52678641 is 14687625.

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

It is not a de Polignac number, because 52678641 - 210 = 52677617 is a prime.

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 52678641.

It is not an unprimeable number, because it can be changed into a prime (52678643) 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, 283126 + ... + 283311.

It is an arithmetic number, because the mean of its divisors is an integer number (9063008).

Almost surely, 252678641 is an apocalyptic number.

It is an amenable number.

52678641 is a deficient number, since it is larger than the sum of its proper divisors (19825423).

52678641 is a wasteful number, since it uses less digits than its factorization.

52678641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566471.

The product of its digits is 80640, while the sum is 39.

The square root of 52678641 is about 7258.0053044897. The cubic root of 52678641 is about 374.8678432088.

The spelling of 52678641 in words is "fifty-two million, six hundred seventy-eight thousand, six hundred forty-one".

Divisors: 1 3 31 93 566437 1699311 17559547 52678641