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53442583 = 92957527
BaseRepresentation
bin1100101111011…
…1100000010111
310201120011102221
43023313200113
5102140130313
65145243211
71216153165
oct313674027
9121504387
1053442583
1128192227
1215a93507
13b0c233c
147152235
154a59c8d
hex32f7817

53442583 has 4 divisors (see below), whose sum is σ = 53501040. Its totient is φ = 53384128.

The previous prime is 53442553. The next prime is 53442589. The reversal of 53442583 is 38524435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38524435 = 57704887.

It is a cyclic number.

It is not a de Polignac number, because 53442583 - 213 = 53434391 is a prime.

It is a super-2 number, since 2×534425832 = 5712219355423778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53442589) 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, 27835 + ... + 29692.

It is an arithmetic number, because the mean of its divisors is an integer number (13375260).

Almost surely, 253442583 is an apocalyptic number.

53442583 is a deficient number, since it is larger than the sum of its proper divisors (58457).

53442583 is an equidigital number, since it uses as much as digits as its factorization.

53442583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58456.

The product of its digits is 57600, while the sum is 34.

The square root of 53442583 is about 7310.4434202037. The cubic root of 53442583 is about 376.6712559373.

The spelling of 53442583 in words is "fifty-three million, four hundred forty-two thousand, five hundred eighty-three".

Divisors: 1 929 57527 53442583