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52831219 = 743175519
BaseRepresentation
bin1100100110001…
…0001111110011
310200102002210211
43021202033303
5102011044334
65124204551
71211025610
oct311421763
9120362724
1052831219
1127904971
1215839757
13ac39c9c
147033507
154988a64
hex32623f3

52831219 has 8 divisors (see below), whose sum is σ = 61783040. Its totient is φ = 44230536.

The previous prime is 52831217. The next prime is 52831231. The reversal of 52831219 is 91213825.

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

It is not a de Polignac number, because 52831219 - 21 = 52831217 is a prime.

It is a super-2 number, since 2×528312192 = 5582275402051922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52831211) 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, 87459 + ... + 88060.

It is an arithmetic number, because the mean of its divisors is an integer number (7722880).

Almost surely, 252831219 is an apocalyptic number.

52831219 is a deficient number, since it is larger than the sum of its proper divisors (8951821).

52831219 is a wasteful number, since it uses less digits than its factorization.

52831219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175569.

The product of its digits is 4320, while the sum is 31.

The square root of 52831219 is about 7268.5087191253. The cubic root of 52831219 is about 375.2294157686.

The spelling of 52831219 in words is "fifty-two million, eight hundred thirty-one thousand, two hundred nineteen".

Divisors: 1 7 43 301 175519 1228633 7547317 52831219