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52184881 = 77454983
BaseRepresentation
bin1100011100010…
…0011100110001
310122012021012101
43013010130301
5101324404011
65102300401
71202364340
oct307043461
9118167171
1052184881
1127503301
1215587701
13aa71a38
146d05b57
1548ac2c1
hex31c4731

52184881 has 4 divisors (see below), whose sum is σ = 59639872. Its totient is φ = 44729892.

The previous prime is 52184879. The next prime is 52184897. The reversal of 52184881 is 18848125.

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 52184881 - 21 = 52184879 is a prime.

It is a super-2 number, since 2×521848812 = 5446523609968322, which contains 22 as substring.

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 52184881.

It is not an unprimeable number, because it can be changed into a prime (52184801) 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, 3727485 + ... + 3727498.

It is an arithmetic number, because the mean of its divisors is an integer number (14909968).

Almost surely, 252184881 is an apocalyptic number.

It is an amenable number.

52184881 is a deficient number, since it is larger than the sum of its proper divisors (7454991).

52184881 is an equidigital number, since it uses as much as digits as its factorization.

52184881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454990.

The product of its digits is 20480, while the sum is 37.

The square root of 52184881 is about 7223.9103676610. The cubic root of 52184881 is about 373.6929452846.

The spelling of 52184881 in words is "fifty-two million, one hundred eighty-four thousand, eight hundred eighty-one".

Divisors: 1 7 7454983 52184881