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52982993 = 77568999
BaseRepresentation
bin1100101000011…
…1010011010001
310200200211000002
43022013103101
5102030423433
65131335345
71212230240
oct312072321
9120624002
1052982993
11279a89a8
12158b1555
13ac910ab
147072957
1549b89e8
hex32874d1

52982993 has 4 divisors (see below), whose sum is σ = 60552000. Its totient is φ = 45413988.

The previous prime is 52982983. The next prime is 52983011. The reversal of 52982993 is 39928925.

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 a cyclic number.

It is not a de Polignac number, because 52982993 - 210 = 52981969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52982903) 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, 3784493 + ... + 3784506.

It is an arithmetic number, because the mean of its divisors is an integer number (15138000).

Almost surely, 252982993 is an apocalyptic number.

It is an amenable number.

52982993 is a deficient number, since it is larger than the sum of its proper divisors (7569007).

52982993 is an equidigital number, since it uses as much as digits as its factorization.

52982993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569006.

The product of its digits is 349920, while the sum is 47.

The square root of 52982993 is about 7278.9417500073. The cubic root of 52982993 is about 375.5883930409.

The spelling of 52982993 in words is "fifty-two million, nine hundred eighty-two thousand, nine hundred ninety-three".

Divisors: 1 7 7568999 52982993