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33233030420 = 2251661651521
BaseRepresentation
bin11110111100110101…
…111100110100010100
310011210001210212100112
4132330311330310110
51021030123433140
623133403102152
72254355045342
oct367465746424
9104701725315
1033233030420
11131041a76a7
126535811958
13319812a055
141873990992
15ce789dc65
hex7bcd7cd14

33233030420 has 12 divisors (see below), whose sum is σ = 69789363924. Its totient is φ = 13293212160.

The previous prime is 33233030399. The next prime is 33233030423. The reversal of 33233030420 is 2403033233.

It can be written as a sum of positive squares in 2 ways, for example, as 8305041424 + 24927988996 = 91132^2 + 157886^2 .

It is a super-2 number, since 2×332330304202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33233030423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830825741 + ... + 830825780.

It is an arithmetic number, because the mean of its divisors is an integer number (5815780327).

Almost surely, 233233030420 is an apocalyptic number.

It is an amenable number.

33233030420 is an abundant number, since it is smaller than the sum of its proper divisors (36556333504).

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

33233030420 is a wasteful number, since it uses less digits than its factorization.

33233030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661651530 (or 1661651528 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 23.

Adding to 33233030420 its reverse (2403033233), we get a palindrome (35636063653).

The spelling of 33233030420 in words is "thirty-three billion, two hundred thirty-three million, thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1661651521 3323303042 6646606084 8308257605 16616515210 33233030420