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53032857861 = 321991803857
BaseRepresentation
bin110001011001000000…
…010011000100000101
312001212221200022110210
4301121000103010011
51332102402422421
640210222110033
73555126565644
oct613100230405
9161787608423
1053032857861
1120544736055
12a34071b319
1350021b9c89
1427d144b35b
1515a5c79576
hexc59013105

53032857861 has 8 divisors (see below), whose sum is σ = 70713780544. Its totient is φ = 35353586880.

The previous prime is 53032857859. The next prime is 53032857883. The reversal of 53032857861 is 16875823035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53032857861 - 21 = 53032857859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53032857861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53032859861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335956 + ... + 467901.

It is an arithmetic number, because the mean of its divisors is an integer number (8839222568).

Almost surely, 253032857861 is an apocalyptic number.

It is an amenable number.

53032857861 is a deficient number, since it is larger than the sum of its proper divisors (17680922683).

53032857861 is a wasteful number, since it uses less digits than its factorization.

53032857861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825851.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 53032857861 in words is "fifty-three billion, thirty-two million, eight hundred fifty-seven thousand, eight hundred sixty-one".

Divisors: 1 3 21991 65973 803857 2411571 17677619287 53032857861