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52020480 = 2835192331
BaseRepresentation
bin1100011001110…
…0010100000000
310121212220200110
43012130110000
5101304123410
65054551320
71201111131
oct306342400
9117786613
1052020480
1127400836
1215508540
13aa14c65
146ca1c88
154878720
hex319c500

52020480 has 288 divisors, whose sum is σ = 188375040. Its totient is φ = 12165120.

The previous prime is 52020467. The next prime is 52020481. The reversal of 52020480 is 8402025.

It is a super-2 number, since 2×520204802 = 5412260678860800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52020481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1678065 + ... + 1678095.

It is an arithmetic number, because the mean of its divisors is an integer number (654080).

Almost surely, 252020480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52020480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94187520).

52020480 is an abundant number, since it is smaller than the sum of its proper divisors (136354560).

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

52020480 is a wasteful number, since it uses less digits than its factorization.

52020480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 52020480 is about 7212.5224436393. The cubic root of 52020480 is about 373.3001104223.

The spelling of 52020480 in words is "fifty-two million, twenty thousand, four hundred eighty".