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52020222 = 238670037
BaseRepresentation
bin1100011001110…
…0001111111110
310121212220022220
43012130033332
5101304121342
65054550210
71201110312
oct306341776
9117786286
1052020222
1127400621
1215508366
13aa14ac7
146ca1b42
1548785ec
hex319c3fe

52020222 has 8 divisors (see below), whose sum is σ = 104040456. Its totient is φ = 17340072.

The previous prime is 52020217. The next prime is 52020257. The reversal of 52020222 is 22202025.

It is a sphenic number, since it is the product of 3 distinct primes.

52020222 is an admirable number.

It is a super-2 number, since 2×520202222 = 5412206993858568, 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 3 ways as a sum of consecutive naturals, for example, 4335013 + ... + 4335024.

It is an arithmetic number, because the mean of its divisors is an integer number (13005057).

Almost surely, 252020222 is an apocalyptic number.

52020222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52020222 is a wasteful number, since it uses less digits than its factorization.

52020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670042.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 52020222 is about 7212.5045580575. The cubic root of 52020222 is about 373.2994932834.

Adding to 52020222 its reverse (22202025), we get a palindrome (74222247).

The spelling of 52020222 in words is "fifty-two million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 8670037 17340074 26010111 52020222