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52955993 = 195127143
BaseRepresentation
bin1100101000000…
…0101101011001
310200122102222002
43022000231121
5102024042433
65131010345
71212055436
oct312005531
9120572862
1052955993
112798a692
12158999b5
13ac81a0c
147066b8d
1549b09e8
hex3280b59

52955993 has 4 divisors (see below), whose sum is σ = 52985088. Its totient is φ = 52926900.

The previous prime is 52955977. The next prime is 52955999. The reversal of 52955993 is 39955925.

It is a happy number.

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 52955993 - 24 = 52955977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52955999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11621 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (13246272).

Almost surely, 252955993 is an apocalyptic number.

It is an amenable number.

52955993 is a deficient number, since it is larger than the sum of its proper divisors (29095).

52955993 is a wasteful number, since it uses less digits than its factorization.

52955993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29094.

The product of its digits is 546750, while the sum is 47.

The square root of 52955993 is about 7277.0868484580. The cubic root of 52955993 is about 375.5245825669.

The spelling of 52955993 in words is "fifty-two million, nine hundred fifty-five thousand, nine hundred ninety-three".

Divisors: 1 1951 27143 52955993