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1033201220 = 225233221717
BaseRepresentation
bin111101100101010…
…110011001000100
32200000011001121212
4331211112121010
54103444414340
6250305030552
734414031312
oct7545263104
92600131555
101033201220
11490240407
1224a025458
1313609328c
149b3110b2
1560a8da65
hex3d956644

1033201220 has 24 divisors (see below), whose sum is σ = 2179044504. Its totient is φ = 411504896.

The previous prime is 1033201217. The next prime is 1033201243. The reversal of 1033201220 is 221023301.

It is a happy number.

1033201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53260804 + 979940416 = 7298^2 + 31304^2 .

It is a super-2 number, since 2×10332012202 = 2135009522018976800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1033201195 and 1033201204.

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, 106199 + ... + 115518.

It is an arithmetic number, because the mean of its divisors is an integer number (90793521).

Almost surely, 21033201220 is an apocalyptic number.

1033201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1033201220 is an abundant number, since it is smaller than the sum of its proper divisors (1145843284).

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

1033201220 is a wasteful number, since it uses less digits than its factorization.

1033201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221959 (or 221957 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1033201220 is about 32143.4475437841. The cubic root of 1033201220 is about 1010.9468035641.

Adding to 1033201220 its reverse (221023301), we get a palindrome (1254224521).

The spelling of 1033201220 in words is "one billion, thirty-three million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 233 466 932 1165 2330 4660 221717 443434 886868 1108585 2217170 4434340 51660061 103320122 206640244 258300305 516600610 1033201220