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52806379 = 145336343
BaseRepresentation
bin1100100101110…
…0001011101011
310200100211201211
43021130023223
5102004301004
65123453551
71210563313
oct311341353
9120324654
1052806379
112789823a
12158272b7
13ac2b8a2
147028443
154981504
hex325c2eb

52806379 has 4 divisors (see below), whose sum is σ = 52844176. Its totient is φ = 52768584.

The previous prime is 52806353. The next prime is 52806389. The reversal of 52806379 is 97360825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52806379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52806389) 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, 16719 + ... + 19624.

It is an arithmetic number, because the mean of its divisors is an integer number (13211044).

Almost surely, 252806379 is an apocalyptic number.

52806379 is a deficient number, since it is larger than the sum of its proper divisors (37797).

52806379 is a wasteful number, since it uses less digits than its factorization.

52806379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37796.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 52806379 is about 7266.7997770683. The cubic root of 52806379 is about 375.1705985261.

The spelling of 52806379 in words is "fifty-two million, eight hundred six thousand, three hundred seventy-nine".

Divisors: 1 1453 36343 52806379