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53842223 = 531015891
BaseRepresentation
bin1100110101100…
…1000100101111
310202022110122102
43031121010233
5102240422343
65202005315
71222436261
oct315310457
9122273572
1053842223
1128435506
121604683b
13b202206
147217b31
154ad83b8
hex335912f

53842223 has 4 divisors (see below), whose sum is σ = 54858168. Its totient is φ = 52826280.

The previous prime is 53842207. The next prime is 53842249. The reversal of 53842223 is 32224835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32224835 = 56444967.

It is a cyclic number.

It is not a de Polignac number, because 53842223 - 24 = 53842207 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 (53842253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507893 + ... + 507998.

It is an arithmetic number, because the mean of its divisors is an integer number (13714542).

Almost surely, 253842223 is an apocalyptic number.

53842223 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53842223 is a deficient number, since it is larger than the sum of its proper divisors (1015945).

53842223 is a wasteful number, since it uses less digits than its factorization.

53842223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015944.

The product of its digits is 11520, while the sum is 29.

The square root of 53842223 is about 7337.7260101478. The cubic root of 53842223 is about 377.6078325926.

The spelling of 53842223 in words is "fifty-three million, eight hundred forty-two thousand, two hundred twenty-three".

Divisors: 1 53 1015891 53842223