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52621353 = 333162869
BaseRepresentation
bin1100100010111…
…1000000101001
310200000102221000
43020233000221
5101432340403
65115505213
71206163011
oct310570051
9120012830
1052621353
1127781224
1215758209
13ab955c5
146dbac41
1549467a3
hex322f029

52621353 has 16 divisors (see below), whose sum is σ = 80473600. Its totient is φ = 33948720.

The previous prime is 52621343. The next prime is 52621367. The reversal of 52621353 is 35312625.

52621353 is a `hidden beast` number, since 5 + 2 + 621 + 35 + 3 = 666.

It is not a de Polignac number, because 52621353 - 25 = 52621321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52621313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30598 + ... + 32271.

It is an arithmetic number, because the mean of its divisors is an integer number (5029600).

Almost surely, 252621353 is an apocalyptic number.

It is an amenable number.

52621353 is a deficient number, since it is larger than the sum of its proper divisors (27852247).

52621353 is a wasteful number, since it uses less digits than its factorization.

52621353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62909 (or 62903 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 52621353 is about 7254.0576920783. The cubic root of 52621353 is about 374.7319043783.

Adding to 52621353 its reverse (35312625), we get a palindrome (87933978).

The spelling of 52621353 in words is "fifty-two million, six hundred twenty-one thousand, three hundred fifty-three".

Divisors: 1 3 9 27 31 93 279 837 62869 188607 565821 1697463 1948939 5846817 17540451 52621353