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52080320 = 265162751
BaseRepresentation
bin1100011010101…
…0111011000000
310121222221202202
43012222323000
5101313032240
65100132332
71201450445
oct306527300
9117887682
1052080320
1127441796
12155370a8
13aa36276
146cb99cc
15488b315
hex31aaec0

52080320 has 28 divisors (see below), whose sum is σ = 124017024. Its totient is φ = 20832000.

The previous prime is 52080313. The next prime is 52080337. The reversal of 52080320 is 2308025.

52080320 = T403 + T404 + ... + T722.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52080292 and 52080301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81056 + ... + 81695.

Almost surely, 252080320 is an apocalyptic number.

It is an amenable number.

52080320 is an abundant number, since it is smaller than the sum of its proper divisors (71936704).

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

52080320 is a wasteful number, since it uses less digits than its factorization.

52080320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162768 (or 162758 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52080320 is about 7216.6695919932. The cubic root of 52080320 is about 373.4431932922.

Adding to 52080320 its reverse (2308025), we get a palindrome (54388345).

The spelling of 52080320 in words is "fifty-two million, eighty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 162751 325502 651004 813755 1302008 1627510 2604016 3255020 5208032 6510040 10416064 13020080 26040160 52080320