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52330020 = 22351934519
BaseRepresentation
bin1100011110011…
…1111000100100
310122110122021220
43013213320210
5101344030040
65105340340
71203540441
oct307477044
9118418256
1052330020
11275a2356
12156376b0
13aac2b12
146d429c8
1548da2d0
hex31e7e24

52330020 has 48 divisors (see below), whose sum is σ = 147315840. Its totient is φ = 13879296.

The previous prime is 52330013. The next prime is 52330021. The reversal of 52330020 is 2003325.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (52330021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9321 + ... + 13839.

It is an arithmetic number, because the mean of its divisors is an integer number (3069080).

Almost surely, 252330020 is an apocalyptic number.

It is an amenable number.

52330020 is an abundant number, since it is smaller than the sum of its proper divisors (94985820).

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

52330020 is a wasteful number, since it uses less digits than its factorization.

52330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724 (or 4722 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 52330020 is about 7233.9491289337. The cubic root of 52330020 is about 374.0390686212.

Adding to 52330020 its reverse (2003325), we get a palindrome (54333345).

The spelling of 52330020 in words is "fifty-two million, three hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 193 386 579 772 965 1158 1930 2316 2895 3860 4519 5790 9038 11580 13557 18076 22595 27114 45190 54228 67785 90380 135570 271140 872167 1744334 2616501 3488668 4360835 5233002 8721670 10466004 13082505 17443340 26165010 52330020