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52152303 = 378329921
BaseRepresentation
bin1100011011110…
…0011111101111
310122010121111210
43012330133233
5101322333203
65101445503
71202200350
oct306743757
9118117453
1052152303
1127490885
1215570893
13aa5cc68
146cd7d27
1548a2803
hex31bc7ef

52152303 has 16 divisors (see below), whose sum is σ = 80430336. Its totient is φ = 29441280.

The previous prime is 52152301. The next prime is 52152307. The reversal of 52152303 is 30325125.

It is not a de Polignac number, because 52152303 - 21 = 52152301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 52152303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52152301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13218 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (5026896).

Almost surely, 252152303 is an apocalyptic number.

52152303 is a deficient number, since it is larger than the sum of its proper divisors (28278033).

52152303 is a wasteful number, since it uses less digits than its factorization.

52152303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30014.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 52152303 is about 7221.6551426941. The cubic root of 52152303 is about 373.6151660327.

Adding to 52152303 its reverse (30325125), we get a palindrome (82477428).

The spelling of 52152303 in words is "fifty-two million, one hundred fifty-two thousand, three hundred three".

Divisors: 1 3 7 21 83 249 581 1743 29921 89763 209447 628341 2483443 7450329 17384101 52152303