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20235227444 = 2233809149629
BaseRepresentation
bin10010110110000111…
…010001000100110100
31221020020011001122022
4102312013101010310
5312420204234234
613143531052312
71314306411125
oct226607210464
957206131568
1020235227444
118644292973
123b088a1098
131ba6347383
14d9d63804c
157d6732e2e
hex4b61d1134

20235227444 has 12 divisors (see below), whose sum is σ = 35412932100. Its totient is φ = 10117246848.

The previous prime is 20235227437. The next prime is 20235227461. The reversal of 20235227444 is 44472253202.

It can be written as a sum of positive squares in 2 ways, for example, as 3622595344 + 16612632100 = 60188^2 + 128890^2 .

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, 60422 + ... + 210050.

It is an arithmetic number, because the mean of its divisors is an integer number (2951077675).

Almost surely, 220235227444 is an apocalyptic number.

It is an amenable number.

20235227444 is a deficient number, since it is larger than the sum of its proper divisors (15177704656).

20235227444 is a wasteful number, since it uses less digits than its factorization.

20235227444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183442 (or 183440 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 35.

The spelling of 20235227444 in words is "twenty billion, two hundred thirty-five million, two hundred twenty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 33809 67618 135236 149629 299258 598516 5058806861 10117613722 20235227444