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52272219 = 343405211
BaseRepresentation
bin1100011101100…
…1110001011011
310122100201000010
43013121301123
5101340202334
65104213003
71203210066
oct307316133
9118321003
1052272219
112756298a
121560a163
13aaa270c
146d298dd
1548c80e9
hex31d9c5b

52272219 has 8 divisors (see below), whose sum is σ = 71317312. Its totient is φ = 34037640.

The previous prime is 52272197. The next prime is 52272221. The reversal of 52272219 is 91227225.

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

It is not a de Polignac number, because 52272219 - 27 = 52272091 is a prime.

It is a super-2 number, since 2×522722192 = 5464769758367922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52272299) 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, 202477 + ... + 202734.

It is an arithmetic number, because the mean of its divisors is an integer number (8914664).

Almost surely, 252272219 is an apocalyptic number.

52272219 is a deficient number, since it is larger than the sum of its proper divisors (19045093).

52272219 is a wasteful number, since it uses less digits than its factorization.

52272219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405257.

The product of its digits is 5040, while the sum is 30.

The square root of 52272219 is about 7229.9529044109. The cubic root of 52272219 is about 373.9013032293.

The spelling of 52272219 in words is "fifty-two million, two hundred seventy-two thousand, two hundred nineteen".

Divisors: 1 3 43 129 405211 1215633 17424073 52272219