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53872443811 = 1730710322369
BaseRepresentation
bin110010001011000011…
…000100000110100011
312011001110111200212201
4302023003010012203
51340312321200221
640425413234031
73615003134254
oct621303040643
9164043450781
1053872443811
112093565443a
12a535932917
1351071200b4
142870b5cb2b
151604820891
hexc8b0c41a3

53872443811 has 8 divisors (see below), whose sum is σ = 57227219280. Its totient is φ = 50538313728.

The previous prime is 53872443809. The next prime is 53872443827. The reversal of 53872443811 is 11834427835.

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

It is not a de Polignac number, because 53872443811 - 21 = 53872443809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53872443511) 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, 5155966 + ... + 5166403.

It is an arithmetic number, because the mean of its divisors is an integer number (7153402410).

Almost surely, 253872443811 is an apocalyptic number.

53872443811 is a deficient number, since it is larger than the sum of its proper divisors (3354775469).

53872443811 is a wasteful number, since it uses less digits than its factorization.

53872443811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10322693.

The product of its digits is 645120, while the sum is 46.

The spelling of 53872443811 in words is "fifty-three billion, eight hundred seventy-two million, four hundred forty-three thousand, eight hundred eleven".

Divisors: 1 17 307 5219 10322369 175480273 3168967283 53872443811