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53213551205 = 528351375391
BaseRepresentation
bin110001100011110001…
…100101101001100101
312002100112200111010212
4301203301211221211
51332440132114310
640240155025205
73562452502463
oct614361455145
9162315614125
1053213551205
11206277316a1
12a39113b205
135030774609
14280b445833
1515b6a6d205
hexc63c65a65

53213551205 has 8 divisors (see below), whose sum is σ = 63858683904. Its totient is φ = 42569226000.

The previous prime is 53213551159. The next prime is 53213551207. The reversal of 53213551205 is 50215531235.

53213551205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-53213551205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53213551207) 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, 45941 + ... + 329450.

It is an arithmetic number, because the mean of its divisors is an integer number (7982335488).

Almost surely, 253213551205 is an apocalyptic number.

It is an amenable number.

53213551205 is a deficient number, since it is larger than the sum of its proper divisors (10645132699).

53213551205 is a wasteful number, since it uses less digits than its factorization.

53213551205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403747.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 53213551205 in words is "fifty-three billion, two hundred thirteen million, five hundred fifty-one thousand, two hundred five".

Divisors: 1 5 28351 141755 375391 1876955 10642710241 53213551205