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52003020 = 2235866717
BaseRepresentation
bin1100011001100…
…0000011001100
310121212000201210
43012120003030
5101303044040
65054334420
71201006206
oct306300314
9117760653
1052003020
1127399703
12154ba410
13aa0a024
146c99776
154873480
hex31980cc

52003020 has 24 divisors (see below), whose sum is σ = 145608624. Its totient is φ = 13867456.

The previous prime is 52002991. The next prime is 52003067. The reversal of 52003020 is 2030025.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 52002987 and 52003005.

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, 433299 + ... + 433418.

It is an arithmetic number, because the mean of its divisors is an integer number (6067026).

Almost surely, 252003020 is an apocalyptic number.

It is an amenable number.

52003020 is an abundant number, since it is smaller than the sum of its proper divisors (93605604).

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

52003020 is a wasteful number, since it uses less digits than its factorization.

52003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866729 (or 866727 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 52003020 is about 7211.3119472118. The cubic root of 52003020 is about 373.2583413006.

Adding to 52003020 its reverse (2030025), we get a palindrome (54033045).

The spelling of 52003020 in words is "fifty-two million, three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 866717 1733434 2600151 3466868 4333585 5200302 8667170 10400604 13000755 17334340 26001510 52003020