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52020404 = 22191076397
BaseRepresentation
bin1100011001110…
…0010010110100
310121212220120122
43012130102310
5101304123104
65054551112
71201110662
oct306342264
9117786518
1052020404
1127400777
1215508498
13aa14c07
146ca1c32
1548786be
hex319c4b4

52020404 has 24 divisors (see below), whose sum is σ = 96737760. Its totient is φ = 24407136.

The previous prime is 52020383. The next prime is 52020413. The reversal of 52020404 is 40402025.

It is a super-2 number, since 2×520204042 = 5412244864646432, which contains 22 as substring.

It is a congruent number.

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, 4934 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (4030740).

Almost surely, 252020404 is an apocalyptic number.

It is an amenable number.

52020404 is a deficient number, since it is larger than the sum of its proper divisors (44717356).

52020404 is a wasteful number, since it uses less digits than its factorization.

52020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527 (or 6525 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 52020404 is about 7212.5171750229. The cubic root of 52020404 is about 373.2999286296.

Adding to 52020404 its reverse (40402025), we get a palindrome (92422429).

The spelling of 52020404 in words is "fifty-two million, twenty thousand, four hundred four".

Divisors: 1 2 4 19 38 76 107 214 428 2033 4066 6397 8132 12794 25588 121543 243086 486172 684479 1368958 2737916 13005101 26010202 52020404