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52197611 = 247321107
BaseRepresentation
bin1100011100011…
…1100011101011
310122012220122212
43013013203223
5101330310421
65102435335
71202446424
oct307074353
9118186585
1052197611
1127511924
1215592b4b
13aa7777b
146d0a64b
1548b0e5b
hex31c78eb

52197611 has 4 divisors (see below), whose sum is σ = 52221192. Its totient is φ = 52174032.

The previous prime is 52197601. The next prime is 52197637. The reversal of 52197611 is 11679125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52197611 - 26 = 52197547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52197601) 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, 8081 + ... + 13026.

It is an arithmetic number, because the mean of its divisors is an integer number (13055298).

Almost surely, 252197611 is an apocalyptic number.

52197611 is a deficient number, since it is larger than the sum of its proper divisors (23581).

52197611 is a wasteful number, since it uses less digits than its factorization.

52197611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23580.

The product of its digits is 3780, while the sum is 32.

The square root of 52197611 is about 7224.7914156742. The cubic root of 52197611 is about 373.7233290812.

The spelling of 52197611 in words is "fifty-two million, one hundred ninety-seven thousand, six hundred eleven".

Divisors: 1 2473 21107 52197611