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52500993 = 317500331
BaseRepresentation
bin1100100001000…
…1101000000001
310122210022211020
43020101220001
5101420012433
65113140053
71205152056
oct310215001
9118708736
1052500993
11276a9856
12156ba629
13ab5289c
146d8902d
154920cb3
hex3211a01

52500993 has 4 divisors (see below), whose sum is σ = 70001328. Its totient is φ = 35000660.

The previous prime is 52500989. The next prime is 52500997. The reversal of 52500993 is 39900525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (52500989) and next prime (52500997).

It is a cyclic number.

It is not a de Polignac number, because 52500993 - 22 = 52500989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52500997) 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, 8750163 + ... + 8750168.

It is an arithmetic number, because the mean of its divisors is an integer number (17500332).

Almost surely, 252500993 is an apocalyptic number.

It is an amenable number.

52500993 is a deficient number, since it is larger than the sum of its proper divisors (17500335).

52500993 is a wasteful number, since it uses less digits than its factorization.

52500993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17500334.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 52500993 is about 7245.7568962807. The cubic root of 52500993 is about 374.4459801239.

The spelling of 52500993 in words is "fifty-two million, five hundred thousand, nine hundred ninety-three".

Divisors: 1 3 17500331 52500993