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52216885 = 571491911
BaseRepresentation
bin1100011100110…
…0010000110101
310122020220002201
43013030100311
5101331420020
65103104501
71202556550
oct307142065
9118226081
1052216885
1127525356
12155a2131
13aa83486
146d13697
1548b6a0a
hex31cc435

52216885 has 8 divisors (see below), whose sum is σ = 71611776. Its totient is φ = 35805840.

The previous prime is 52216873. The next prime is 52216889. The reversal of 52216885 is 58861225.

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

It is not a de Polignac number, because 52216885 - 27 = 52216757 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 (52216889) 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, 745921 + ... + 745990.

It is an arithmetic number, because the mean of its divisors is an integer number (8951472).

Almost surely, 252216885 is an apocalyptic number.

It is an amenable number.

52216885 is a deficient number, since it is larger than the sum of its proper divisors (19394891).

52216885 is a wasteful number, since it uses less digits than its factorization.

52216885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491923.

The product of its digits is 38400, while the sum is 37.

The square root of 52216885 is about 7226.1251719023. The cubic root of 52216885 is about 373.7693226104.

The spelling of 52216885 in words is "fifty-two million, two hundred sixteen thousand, eight hundred eighty-five".

Divisors: 1 5 7 35 1491911 7459555 10443377 52216885