Search a number
-
+
52404305 = 529361409
BaseRepresentation
bin1100011111101…
…0000001010001
310122121102012012
43013322001101
5101403414210
65111112305
71204300142
oct307720121
9118542165
1052404305
1127643148
1215672695
13ab1a885
146d61ac9
154902305
hex31fa051

52404305 has 8 divisors (see below), whose sum is σ = 65053800. Its totient is φ = 40477696.

The previous prime is 52404277. The next prime is 52404311. The reversal of 52404305 is 50340425.

It can be written as a sum of positive squares in 4 ways, for example, as 8473921 + 43930384 = 2911^2 + 6628^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52404305 - 220 = 51355729 is a prime.

It is a super-2 number, since 2×524043052 = 5492422365066050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180560 + ... + 180849.

It is an arithmetic number, because the mean of its divisors is an integer number (8131725).

Almost surely, 252404305 is an apocalyptic number.

It is an amenable number.

52404305 is a deficient number, since it is larger than the sum of its proper divisors (12649495).

52404305 is a wasteful number, since it uses less digits than its factorization.

52404305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361443.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 52404305 is about 7239.0817787894. The cubic root of 52404305 is about 374.2159738020.

The spelling of 52404305 in words is "fifty-two million, four hundred four thousand, three hundred five".

Divisors: 1 5 29 145 361409 1807045 10480861 52404305