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53202399985 = 5721911429087
BaseRepresentation
bin110001100011000111…
…000011001011110001
312002022202200221112201
4301203013003023301
51332424303244420
640235120023201
73562255636600
oct614307031361
9162282627481
1053202399985
1120621405609
12a389461b01
13502b36ba67
142809b81a37
1515b5ab910a
hexc631c32f1

53202399985 has 24 divisors (see below), whose sum is σ = 78174961920. Its totient is φ = 34561556064.

The previous prime is 53202399983. The next prime is 53202399989. The reversal of 53202399985 is 58999320235.

It is a happy number.

It is not a de Polignac number, because 53202399985 - 21 = 53202399983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53202399983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5709889 + ... + 5719198.

It is an arithmetic number, because the mean of its divisors is an integer number (3257290080).

Almost surely, 253202399985 is an apocalyptic number.

It is an amenable number.

53202399985 is a deficient number, since it is larger than the sum of its proper divisors (24972561935).

53202399985 is a wasteful number, since it uses less digits than its factorization.

53202399985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429125 (or 11429118 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 55.

The spelling of 53202399985 in words is "fifty-three billion, two hundred two million, three hundred ninety-nine thousand, nine hundred eighty-five".

Divisors: 1 5 7 19 35 49 95 133 245 665 931 4655 11429087 57145435 80003609 217152653 400018045 560025263 1085763265 1520068571 2800126315 7600342855 10640479997 53202399985