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52235420 = 22510325357
BaseRepresentation
bin1100011101000…
…0110010011100
310122021211112012
43013100302130
5101333013140
65103330352
71202664566
oct307206234
9118254465
1052235420
1127538276
12155b09b8
13aa8ba43
146d1a336
1548bc265
hex31d0c9c

52235420 has 24 divisors (see below), whose sum is σ = 110763744. Its totient is φ = 20690496.

The previous prime is 52235413. The next prime is 52235423. The reversal of 52235420 is 2453225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52235423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10619 + ... + 14738.

It is an arithmetic number, because the mean of its divisors is an integer number (4615156).

Almost surely, 252235420 is an apocalyptic number.

It is an amenable number.

52235420 is an abundant number, since it is smaller than the sum of its proper divisors (58528324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52235420 is a wasteful number, since it uses less digits than its factorization.

52235420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25469 (or 25467 counting only the distinct ones).

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

The square root of 52235420 is about 7227.4075573472. The cubic root of 52235420 is about 373.8135419905.

Adding to 52235420 its reverse (2453225), we get a palindrome (54688645).

The spelling of 52235420 in words is "fifty-two million, two hundred thirty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 25357 50714 101428 126785 253570 507140 2611771 5223542 10447084 13058855 26117710 52235420