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33052420 = 2251797213
BaseRepresentation
bin111111000010…
…1011100000100
32022012020101201
41332011130010
531430134140
63140232244
7550640512
oct176053404
968166351
1033052420
1117725855
12b09b684
136b0345b
1445654b2
152d7d49a
hex1f85704

33052420 has 24 divisors (see below), whose sum is σ = 73493784. Its totient is φ = 12443136.

The previous prime is 33052363. The next prime is 33052441. The reversal of 33052420 is 2425033.

It can be written as a sum of positive squares in 4 ways, for example, as 5531904 + 27520516 = 2352^2 + 5246^2 .

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, 48267 + ... + 48946.

It is an arithmetic number, because the mean of its divisors is an integer number (3062241).

Almost surely, 233052420 is an apocalyptic number.

It is an amenable number.

33052420 is an abundant number, since it is smaller than the sum of its proper divisors (40441364).

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

33052420 is a wasteful number, since it uses less digits than its factorization.

33052420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97239 (or 97237 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 33052420 is about 5749.1234114428. The cubic root of 33052420 is about 320.9231804737.

Adding to 33052420 its reverse (2425033), we get a palindrome (35477453).

The spelling of 33052420 in words is "thirty-three million, fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 97213 194426 388852 486065 972130 1652621 1944260 3305242 6610484 8263105 16526210 33052420